One number is three more than a second number. three times the first number is less than four times the second number. find the two numbers.

The first number: 3 + x
The second number: x

3 * (3 + x) < 4 * x
If you would like to find the two numbers, you can calculate this using the following steps:
3 * 3 + 3 * x < 4 * x
9 < 4 * x - 3 * x
9 < x
x > 9

Result: The first number is greater than 12 and the second number is greater than 9.