Answer:
Proportion states that the ratios or fractions are equal
Use conversion:
1 mm =0.001 m
As per the statement:
If the city of Miami is 1.83 meters above sea level.
Also,
Sea level rises in 1 year = 4 mm = 0.004 m
Let x be the years of steady sea level.
then by definition of proportion:
[tex]\frac{1}{0.004}=\frac{x}{1.83}[/tex]
by Cross multiply we get;
[tex]1.83 = 0.004x[/tex]
Divide both sides by 0.004 we get;
457.5 = x
Therefore, 457.5 years of steady sea level rise at 4 mm/ year will flood the city