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Finding the Fourth Proportional to 5,487.30, 8,230.95 and 5,163.30

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Solution

The fourth proportional to 5,487.30, 8,230.95 and 5,163.30 is: 7,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.30 : 8,230.95 = 5,163.30 : x
  2. Step 2: Convert to fraction form
    5,487.30/8,230.95 = 5,163.30/x
  3. Step 3: Cross multiply
    5,487.30x = 8,230.95 × 5,163.30
  4. Step 4: Simplify right side
    5,487.30x = 42,498,864.14
  5. Step 5: Solve for x
    x = 42,498,864.14/5,487.30
  6. Step 6: Final answer
    x = 7,744.95

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Similar ratio
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1.5x scale

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.