To find the actual width of the banner, you can use the scale provided, which is 1 inch equals 3 feet.
If the width of the banner in the scale drawing is 4 inches, you can calculate the actual width as follows:
\[ \text{Actual Width} = \text{Scale Width} \times \text{Scale Factor} \] \[ \text{Actual Width} = 4 , \text{inches} \times 3 , \text{feet/inch} = 12 , \text{feet} \]
Therefore, the actual width of the banner is 12 feet.