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Finding the Fourth Proportional to 6,620.66, 9,930.84 and 3,332.87

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Solution

The fourth proportional to 6,620.66, 9,930.84 and 3,332.87 is: 4,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.66 : 9,930.84 = 3,332.87 : x
  2. Step 2: Convert to fraction form
    6,620.66/9,930.84 = 3,332.87/x
  3. Step 3: Cross multiply
    6,620.66x = 9,930.84 × 3,332.87
  4. Step 4: Simplify right side
    6,620.66x = 33,098,190.38
  5. Step 5: Solve for x
    x = 33,098,190.38/6,620.66
  6. Step 6: Final answer
    x = 4,999.23

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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.