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Finding the Fourth Proportional to 6,635.88, 9,935.10 and 3,508.80

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Solution

The fourth proportional to 6,635.88, 9,935.10 and 3,508.80 is: 5,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,635.88 : 9,935.10 = 3,508.80 : x
  2. Step 2: Convert to fraction form
    6,635.88/9,935.10 = 3,508.80/x
  3. Step 3: Cross multiply
    6,635.88x = 9,935.10 × 3,508.80
  4. Step 4: Simplify right side
    6,635.88x = 34,860,278.88
  5. Step 5: Solve for x
    x = 34,860,278.88/6,635.88
  6. Step 6: Final answer
    x = 5,253.30

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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.