A poster is shown below:

A rectangle is shown. The length of the rectangle is labeled 10 feet. The width of the rectangle is labeled 4 feet.

What are the dimensions if the poster is enlarged by a factor of three over two?

1. 12 ft by 30 ft
2. 2 ft by 5 ft
3. 6 ft by 15 ft
4. 5 ft by 12 ft