Question

an image of a painting on a website is 5 inches wide and 6 inches tall on the computer screen. the actual height of the painting is 18 inches. what scale is being used for the image on the website? every 1 inch on the computer screen image represents inches on the actual painting.

Explanation:

Step1: Set up proportion

Let \(x\) be the number of inches on the actual painting represented by 1 inch on the screen.
We know that \(\frac{6}{18}=\frac{1}{x}\) (using the ratio of heights: screen height to actual height).

Step2: Solve the proportion

Cross - multiply: \(6x = 18\times1\).
Then \(x=\frac{18}{6}\).

Answer:

3