Home / 6,139.62-8,472.42-3,487.02

Finding the Fourth Proportional to 6,139.62, 8,472.42 and 3,487.02

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Solution

The fourth proportional to 6,139.62, 8,472.42 and 3,487.02 is: 4,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.62 : 8,472.42 = 3,487.02 : x
  2. Step 2: Convert to fraction form
    6,139.62/8,472.42 = 3,487.02/x
  3. Step 3: Cross multiply
    6,139.62x = 8,472.42 × 3,487.02
  4. Step 4: Simplify right side
    6,139.62x = 29,543,497.99
  5. Step 5: Solve for x
    x = 29,543,497.99/6,139.62
  6. Step 6: Final answer
    x = 4,811.94

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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.