Home / 939-1,998

Finding the Third Proportional to 939 and 1,998

Calculator

Solution

The third proportional to 939 and 1,998 is: 4,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    939 : 1,998 = 1,998 : x
  2. Step 2: Convert to fraction form
    939/1,998 = 1,998/x
  3. Step 3: Cross multiply
    939x = 1,998 × 1,998
  4. Step 4: Simplify right side
    939x = 3,992,004
  5. Step 5: Solve for x
    x = 3,992,004/939
  6. Step 6: Final answer
    x = 4,251.34

Related Problems

Find third proportional to 469.50 and 999
Half scale
Find third proportional to 1,878 and 3,996
Double scale
Find third proportional to 941 and 2,002
Similar ratio
Find third proportional to 1,408.50 and 2,997
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.