4.472135955 rounded to nearest tenth of a unit

4.5

To round 4.472135955 to the nearest tenth of a unit, you need to look at the hundredth place (the second digit after the decimal point), which is 7 in this case.

Since 7 is greater than or equal to 5, you need to round up the number.

Therefore, 4.472135955 rounded to the nearest tenth is 4.5.