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Finding the Fourth Proportional to 6,757.76, 10,129.76 and 3,242.60

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Solution

The fourth proportional to 6,757.76, 10,129.76 and 3,242.60 is: 4,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.76 : 10,129.76 = 3,242.60 : x
  2. Step 2: Convert to fraction form
    6,757.76/10,129.76 = 3,242.60/x
  3. Step 3: Cross multiply
    6,757.76x = 10,129.76 × 3,242.60
  4. Step 4: Simplify right side
    6,757.76x = 32,846,759.78
  5. Step 5: Solve for x
    x = 32,846,759.78/6,757.76
  6. Step 6: Final answer
    x = 4,860.60

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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.