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Finding the Fourth Proportional to 6,463.88, 8,919.63 and 3,631.10

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Solution

The fourth proportional to 6,463.88, 8,919.63 and 3,631.10 is: 5,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.88 : 8,919.63 = 3,631.10 : x
  2. Step 2: Convert to fraction form
    6,463.88/8,919.63 = 3,631.10/x
  3. Step 3: Cross multiply
    6,463.88x = 8,919.63 × 3,631.10
  4. Step 4: Simplify right side
    6,463.88x = 32,388,068.49
  5. Step 5: Solve for x
    x = 32,388,068.49/6,463.88
  6. Step 6: Final answer
    x = 5,010.62

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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.