To Round to Ones Place, We need to specifically look to the Tenths Place. Is the Tenths place larger than 4? If it is not, The Ones place will stay the same, meaning if you rounded it to the Ones place, your answer will be 4 meters.
To round to the tenths, we need to look at the hundredths place. Is the Hundredths place larger than 4? If it is, you will boost the tenths up by one, meaning your answer will be: 4.3 meters.