Home / 2,614.40-3,921.48-1,314.88

Finding the Fourth Proportional to 2,614.40, 3,921.48 and 1,314.88

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Solution

The fourth proportional to 2,614.40, 3,921.48 and 1,314.88 is: 1,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.40 : 3,921.48 = 1,314.88 : x
  2. Step 2: Convert to fraction form
    2,614.40/3,921.48 = 1,314.88/x
  3. Step 3: Cross multiply
    2,614.40x = 3,921.48 × 1,314.88
  4. Step 4: Simplify right side
    2,614.40x = 5,156,275.62
  5. Step 5: Solve for x
    x = 5,156,275.62/2,614.40
  6. Step 6: Final answer
    x = 1,972.26

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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.