Home / 3,387.92-5,084.28-2,156.24

Finding the Fourth Proportional to 3,387.92, 5,084.28 and 2,156.24

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Solution

The fourth proportional to 3,387.92, 5,084.28 and 2,156.24 is: 3,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.92 : 5,084.28 = 2,156.24 : x
  2. Step 2: Convert to fraction form
    3,387.92/5,084.28 = 2,156.24/x
  3. Step 3: Cross multiply
    3,387.92x = 5,084.28 × 2,156.24
  4. Step 4: Simplify right side
    3,387.92x = 10,962,927.91
  5. Step 5: Solve for x
    x = 10,962,927.91/3,387.92
  6. Step 6: Final answer
    x = 3,235.89

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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.