Question

A blueprint of a house has a scale in which 1 inch equals 4 1/2 feet. If the living room wall measures 7 1/4 inches on the​ drawing, what is the actual length of the​ wall?

The actual length of the wall is ___ feet

Answer 1

Explanation:

1 : 4 1/2 :: 8 1/5 : x proportion

x = (4 1/2)(8 1/5) product of means/extremes

x = (9/2)(41/5) change improper fraction

x = 369/10 multiply

x = 36.9 change to decimal

The actual length is 36.9 feet.