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Finding the Fourth Proportional to 6,612.26, 9,918.43 and 2,229.76

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Solution

The fourth proportional to 6,612.26, 9,918.43 and 2,229.76 is: 3,344.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.26 : 9,918.43 = 2,229.76 : x
  2. Step 2: Convert to fraction form
    6,612.26/9,918.43 = 2,229.76/x
  3. Step 3: Cross multiply
    6,612.26x = 9,918.43 × 2,229.76
  4. Step 4: Simplify right side
    6,612.26x = 22,115,657.74
  5. Step 5: Solve for x
    x = 22,115,657.74/6,612.26
  6. Step 6: Final answer
    x = 3,344.64

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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.