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Finding the Fourth Proportional to 6,612.32, 9,918.52 and 2,229.82

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Solution

The fourth proportional to 6,612.32, 9,918.52 and 2,229.82 is: 3,344.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.32 : 9,918.52 = 2,229.82 : x
  2. Step 2: Convert to fraction form
    6,612.32/9,918.52 = 2,229.82/x
  3. Step 3: Cross multiply
    6,612.32x = 9,918.52 × 2,229.82
  4. Step 4: Simplify right side
    6,612.32x = 22,116,483.90
  5. Step 5: Solve for x
    x = 22,116,483.90/6,612.32
  6. Step 6: Final answer
    x = 3,344.74

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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.