1. The problem states a length of 4 inches. 2. Since no specific question is asked, we interpret this as understanding or converting the length. 3. To convert inches to centimeters, use the formula: $$\text{length in cm} = \text{length in inches} \times 2.54$$ 4. Substitute the given value: $$\text{length in cm} = 4 \times 2.54$$ 5. Calculate the multiplication: $$\text{length in cm} = 10.16$$ 6. Therefore, 4 inches equals 10.16 centimeters. This conversion is useful in many contexts where metric units are preferred.