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Finding the Fourth Proportional to 6,363.14, 8,781.15 and 3,530.57

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Solution

The fourth proportional to 6,363.14, 8,781.15 and 3,530.57 is: 4,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.14 : 8,781.15 = 3,530.57 : x
  2. Step 2: Convert to fraction form
    6,363.14/8,781.15 = 3,530.57/x
  3. Step 3: Cross multiply
    6,363.14x = 8,781.15 × 3,530.57
  4. Step 4: Simplify right side
    6,363.14x = 31,002,420.85
  5. Step 5: Solve for x
    x = 31,002,420.85/6,363.14
  6. Step 6: Final answer
    x = 4,872.19

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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.