Direct answer
Seat distance should be derived from image width, resolution, viewing angle, and the viewer's comfort—not from one universal multiplier. The front row must be far enough away that the entire image is comfortable to take in, while the primary seat should be close enough to feel immersive. Then check the rear seats for detail, subtitles, and obstruction from the row in front. Reclined eye position, not the front edge of the chair, is the meaningful measurement. A curved row, aisle, riser, and acoustically transparent screen can all change the geometry.
Before ordering furniture, lay out the actual chair dimensions in both upright and fully reclined positions and draw eye-to-screen sightlines. CEDIA/CTA RP22 treats sightline and seating geometry as part of system design rather than a furniture decision made afterward.
Sources and technical references
Use the organizations responsible for a product, platform or standard to confirm current specifications and compatibility.
How this answer was prepared
Camelback Smart Homes publishes this FAQ library for homeowners, design professionals, builders and property teams comparing integrated technology. Answers begin with the practical conclusion, then explain the factors that can change it.
Limitations: This is general educational information, not a site-specific design, quote, code determination or compatibility guarantee. Final requirements depend on the property, construction, infrastructure, equipment versions and project goals.