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Finding the Fourth Proportional to 5,394.92, 8,099.15 and 5,145.62

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Solution

The fourth proportional to 5,394.92, 8,099.15 and 5,145.62 is: 7,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.92 : 8,099.15 = 5,145.62 : x
  2. Step 2: Convert to fraction form
    5,394.92/8,099.15 = 5,145.62/x
  3. Step 3: Cross multiply
    5,394.92x = 8,099.15 × 5,145.62
  4. Step 4: Simplify right side
    5,394.92x = 41,675,082.00
  5. Step 5: Solve for x
    x = 41,675,082.00/5,394.92
  6. Step 6: Final answer
    x = 7,724.88

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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.