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Finding the Fourth Proportional to 6,463.87, 8,920.02 and 3,631.26

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Solution

The fourth proportional to 6,463.87, 8,920.02 and 3,631.26 is: 5,011.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.87 : 8,920.02 = 3,631.26 : x
  2. Step 2: Convert to fraction form
    6,463.87/8,920.02 = 3,631.26/x
  3. Step 3: Cross multiply
    6,463.87x = 8,920.02 × 3,631.26
  4. Step 4: Simplify right side
    6,463.87x = 32,390,958.89
  5. Step 5: Solve for x
    x = 32,390,958.89/6,463.87
  6. Step 6: Final answer
    x = 5,011.08

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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.