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Finding the Fourth Proportional to 6,365.62, 8,778.99 and 4,125.39

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Solution

The fourth proportional to 6,365.62, 8,778.99 and 4,125.39 is: 5,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,365.62 : 8,778.99 = 4,125.39 : x
  2. Step 2: Convert to fraction form
    6,365.62/8,778.99 = 4,125.39/x
  3. Step 3: Cross multiply
    6,365.62x = 8,778.99 × 4,125.39
  4. Step 4: Simplify right side
    6,365.62x = 36,216,757.56
  5. Step 5: Solve for x
    x = 36,216,757.56/6,365.62
  6. Step 6: Final answer
    x = 5,689.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.