Home / 2,540.40-3,805.92-2,132.16

Finding the Fourth Proportional to 2,540.40, 3,805.92 and 2,132.16

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Solution

The fourth proportional to 2,540.40, 3,805.92 and 2,132.16 is: 3,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.40 : 3,805.92 = 2,132.16 : x
  2. Step 2: Convert to fraction form
    2,540.40/3,805.92 = 2,132.16/x
  3. Step 3: Cross multiply
    2,540.40x = 3,805.92 × 2,132.16
  4. Step 4: Simplify right side
    2,540.40x = 8,114,830.39
  5. Step 5: Solve for x
    x = 8,114,830.39/2,540.40
  6. Step 6: Final answer
    x = 3,194.31

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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.