Home / 3,937.06-5,432.42-2,520.97

Finding the Fourth Proportional to 3,937.06, 5,432.42 and 2,520.97

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Solution

The fourth proportional to 3,937.06, 5,432.42 and 2,520.97 is: 3,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.06 : 5,432.42 = 2,520.97 : x
  2. Step 2: Convert to fraction form
    3,937.06/5,432.42 = 2,520.97/x
  3. Step 3: Cross multiply
    3,937.06x = 5,432.42 × 2,520.97
  4. Step 4: Simplify right side
    3,937.06x = 13,694,976.95
  5. Step 5: Solve for x
    x = 13,694,976.95/3,937.06
  6. Step 6: Final answer
    x = 3,478.48

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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.