Question

How do I solve this scale drawing problem?

A blueprint of a house has a scale of 1 inch = 2.5 feet. In the blueprint the hallway is 6 inches long. How long would the hallway be if you used the scale of 1 inch: 5 feet?

Answer 1

30 feet

Explanation:

Create a proportion by putting inches/feet.

`(1 inch)/(5 feet) = (6 inches)/(x feet)`

cross multiply (the labels are not important when multiplying. they help to place everything in the proportion correctly).

1x = 30

x = 30 feet