Home / 2,649.14-3,972.28-2,031.31

Finding the Fourth Proportional to 2,649.14, 3,972.28 and 2,031.31

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Solution

The fourth proportional to 2,649.14, 3,972.28 and 2,031.31 is: 3,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.14 : 3,972.28 = 2,031.31 : x
  2. Step 2: Convert to fraction form
    2,649.14/3,972.28 = 2,031.31/x
  3. Step 3: Cross multiply
    2,649.14x = 3,972.28 × 2,031.31
  4. Step 4: Simplify right side
    2,649.14x = 8,068,932.09
  5. Step 5: Solve for x
    x = 8,068,932.09/2,649.14
  6. Step 6: Final answer
    x = 3,045.87

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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.