Home / 2,432.95-3,358.32-1,687.90

Finding the Fourth Proportional to 2,432.95, 3,358.32 and 1,687.90

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Solution

The fourth proportional to 2,432.95, 3,358.32 and 1,687.90 is: 2,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.95 : 3,358.32 = 1,687.90 : x
  2. Step 2: Convert to fraction form
    2,432.95/3,358.32 = 1,687.90/x
  3. Step 3: Cross multiply
    2,432.95x = 3,358.32 × 1,687.90
  4. Step 4: Simplify right side
    2,432.95x = 5,668,508.33
  5. Step 5: Solve for x
    x = 5,668,508.33/2,432.95
  6. Step 6: Final answer
    x = 2,329.89

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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.