Home / 3,134.28-4,331-2,087.76

Finding the Fourth Proportional to 3,134.28, 4,331 and 2,087.76

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Solution

The fourth proportional to 3,134.28, 4,331 and 2,087.76 is: 2,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.28 : 4,331 = 2,087.76 : x
  2. Step 2: Convert to fraction form
    3,134.28/4,331 = 2,087.76/x
  3. Step 3: Cross multiply
    3,134.28x = 4,331 × 2,087.76
  4. Step 4: Simplify right side
    3,134.28x = 9,042,088.56
  5. Step 5: Solve for x
    x = 9,042,088.56/3,134.28
  6. Step 6: Final answer
    x = 2,884.90

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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.