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Finding the Fourth Proportional to 5,481, 8,219.07 and 3,400.92

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Solution

The fourth proportional to 5,481, 8,219.07 and 3,400.92 is: 5,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481 : 8,219.07 = 3,400.92 : x
  2. Step 2: Convert to fraction form
    5,481/8,219.07 = 3,400.92/x
  3. Step 3: Cross multiply
    5,481x = 8,219.07 × 3,400.92
  4. Step 4: Simplify right side
    5,481x = 27,952,399.54
  5. Step 5: Solve for x
    x = 27,952,399.54/5,481
  6. Step 6: Final answer
    x = 5,099.87

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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.