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Finding the Fourth Proportional to 6,321.88, 8,724.62 and 3,669.28

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Solution

The fourth proportional to 6,321.88, 8,724.62 and 3,669.28 is: 5,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.88 : 8,724.62 = 3,669.28 : x
  2. Step 2: Convert to fraction form
    6,321.88/8,724.62 = 3,669.28/x
  3. Step 3: Cross multiply
    6,321.88x = 8,724.62 × 3,669.28
  4. Step 4: Simplify right side
    6,321.88x = 32,013,073.67
  5. Step 5: Solve for x
    x = 32,013,073.67/6,321.88
  6. Step 6: Final answer
    x = 5,063.85

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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.