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Finding the Fourth Proportional to 5,662, 8,490.94 and 1,963.24

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Solution

The fourth proportional to 5,662, 8,490.94 and 1,963.24 is: 2,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662 : 8,490.94 = 1,963.24 : x
  2. Step 2: Convert to fraction form
    5,662/8,490.94 = 1,963.24/x
  3. Step 3: Cross multiply
    5,662x = 8,490.94 × 1,963.24
  4. Step 4: Simplify right side
    5,662x = 16,669,753.05
  5. Step 5: Solve for x
    x = 16,669,753.05/5,662
  6. Step 6: Final answer
    x = 2,944.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.