The scale on a blueprint is 3/4inches = 2 1/2 feet. What is the actual length of a bedroom that is 3 1/2 inches on the blueprint? Write answer in inches.

Using proportions, you could say that 3/4 inches is to 2 1/2 feet as 3 1/2 inches is to what? Mathematically:


\frac { \frac 3 4 \ inch} {2 \frac 1 2 \ ft} = \frac { 3 \frac 1 2 \ inch} {x \ ft}


Now solve for x.