Home / 2,479.97-3,422.33-1,432.61

Finding the Fourth Proportional to 2,479.97, 3,422.33 and 1,432.61

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Solution

The fourth proportional to 2,479.97, 3,422.33 and 1,432.61 is: 1,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.97 : 3,422.33 = 1,432.61 : x
  2. Step 2: Convert to fraction form
    2,479.97/3,422.33 = 1,432.61/x
  3. Step 3: Cross multiply
    2,479.97x = 3,422.33 × 1,432.61
  4. Step 4: Simplify right side
    2,479.97x = 4,902,850.65
  5. Step 5: Solve for x
    x = 4,902,850.65/2,479.97
  6. Step 6: Final answer
    x = 1,976.98

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1.5x scale

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.