Home / 2,719.60-3,753.28-1,540.88

Finding the Fourth Proportional to 2,719.60, 3,753.28 and 1,540.88

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Solution

The fourth proportional to 2,719.60, 3,753.28 and 1,540.88 is: 2,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.60 : 3,753.28 = 1,540.88 : x
  2. Step 2: Convert to fraction form
    2,719.60/3,753.28 = 1,540.88/x
  3. Step 3: Cross multiply
    2,719.60x = 3,753.28 × 1,540.88
  4. Step 4: Simplify right side
    2,719.60x = 5,783,354.09
  5. Step 5: Solve for x
    x = 5,783,354.09/2,719.60
  6. Step 6: Final answer
    x = 2,126.55

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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.