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Finding the Fourth Proportional to 6,612.28, 9,919.87 and 2,229.62

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Solution

The fourth proportional to 6,612.28, 9,919.87 and 2,229.62 is: 3,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.28 : 9,919.87 = 2,229.62 : x
  2. Step 2: Convert to fraction form
    6,612.28/9,919.87 = 2,229.62/x
  3. Step 3: Cross multiply
    6,612.28x = 9,919.87 × 2,229.62
  4. Step 4: Simplify right side
    6,612.28x = 22,117,485.38
  5. Step 5: Solve for x
    x = 22,117,485.38/6,612.28
  6. Step 6: Final answer
    x = 3,344.91

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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.