Home / 2,220.38-3,331.08-759.53

Finding the Fourth Proportional to 2,220.38, 3,331.08 and 759.53

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Solution

The fourth proportional to 2,220.38, 3,331.08 and 759.53 is: 1,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.38 : 3,331.08 = 759.53 : x
  2. Step 2: Convert to fraction form
    2,220.38/3,331.08 = 759.53/x
  3. Step 3: Cross multiply
    2,220.38x = 3,331.08 × 759.53
  4. Step 4: Simplify right side
    2,220.38x = 2,530,055.19
  5. Step 5: Solve for x
    x = 2,530,055.19/2,220.38
  6. Step 6: Final answer
    x = 1,139.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.