To convert 4 inches to centimeters (cm), follow these steps:

Step 1: Understand the conversion factor

One inch is equal to 2.54 centimeters. This means that to convert inches to centimeters, we need to multiply the number of inches by 2.54.

Step 2: Write the conversion equation

We can write the conversion equation as:

4 inches * 2.54 cm/1 inch = x cm

Where x is the unknown number of centimeters.

Step 3: Cancel out the units

As we can see in the conversion equation, the unit of inches is present in both the numerator and denominator. This means we can cancel them out.

4 inches * 2.54 cm/1 inch = x cm

4 * 2.54 cm = x cm

10.16 cm = x cm

Step 4: Solve for x

Since the units are now canceled out, we can simply multiply 4 by 2.54 to get the value of x, which is the equivalent number of centimeters.

10.16 cm = x cm

Therefore, 4 inches is equal to 10.16 centimeters.

Step 5: Write the final answer

Finally, we can write the final answer as:

4 inches = 10.16 cm

Or we can also say that 4 inches is equivalent to 10.16 centimeters.

Congratulations, you have successfully converted 4 inches to centimeters! Remember to use the conversion factor of 2.54 cm per inch when converting between these two units of length.