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Finding the Fourth Proportional to 6,613.44, 9,917.28 and 2,229.72

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Solution

The fourth proportional to 6,613.44, 9,917.28 and 2,229.72 is: 3,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.44 : 9,917.28 = 2,229.72 : x
  2. Step 2: Convert to fraction form
    6,613.44/9,917.28 = 2,229.72/x
  3. Step 3: Cross multiply
    6,613.44x = 9,917.28 × 2,229.72
  4. Step 4: Simplify right side
    6,613.44x = 22,112,757.56
  5. Step 5: Solve for x
    x = 22,112,757.56/6,613.44
  6. Step 6: Final answer
    x = 3,343.61

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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.