Home / 2,279.92-3,422.28-1,356.52

Finding the Fourth Proportional to 2,279.92, 3,422.28 and 1,356.52

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Solution

The fourth proportional to 2,279.92, 3,422.28 and 1,356.52 is: 2,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.92 : 3,422.28 = 1,356.52 : x
  2. Step 2: Convert to fraction form
    2,279.92/3,422.28 = 1,356.52/x
  3. Step 3: Cross multiply
    2,279.92x = 3,422.28 × 1,356.52
  4. Step 4: Simplify right side
    2,279.92x = 4,642,391.27
  5. Step 5: Solve for x
    x = 4,642,391.27/2,279.92
  6. Step 6: Final answer
    x = 2,036.21

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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.