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Finding the Fourth Proportional to 6,608.34, 9,913.86 and 2,712.78

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Solution

The fourth proportional to 6,608.34, 9,913.86 and 2,712.78 is: 4,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.34 : 9,913.86 = 2,712.78 : x
  2. Step 2: Convert to fraction form
    6,608.34/9,913.86 = 2,712.78/x
  3. Step 3: Cross multiply
    6,608.34x = 9,913.86 × 2,712.78
  4. Step 4: Simplify right side
    6,608.34x = 26,894,121.13
  5. Step 5: Solve for x
    x = 26,894,121.13/6,608.34
  6. Step 6: Final answer
    x = 4,069.72

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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.