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Finding the Fourth Proportional to 6,517.55, 9,773.89 and 2,620.64

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Solution

The fourth proportional to 6,517.55, 9,773.89 and 2,620.64 is: 3,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.55 : 9,773.89 = 2,620.64 : x
  2. Step 2: Convert to fraction form
    6,517.55/9,773.89 = 2,620.64/x
  3. Step 3: Cross multiply
    6,517.55x = 9,773.89 × 2,620.64
  4. Step 4: Simplify right side
    6,517.55x = 25,613,847.09
  5. Step 5: Solve for x
    x = 25,613,847.09/6,517.55
  6. Step 6: Final answer
    x = 3,929.98

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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.