To solve for \( q \) in the equation
\[ 2.9 = \frac{q}{4}, \]
you can follow these steps:
- Multiply both sides by 4 to eliminate the fraction:
\[ 2.9 \times 4 = q. \]
- Calculate the left side:
\[ 2.9 \times 4 = 11.6. \]
So,
\[ q = 11.6. \]
Thus, the solution is
\[ q = 11.6. \]