Home / 2,719.90-3,753.53-1,540.96

Finding the Fourth Proportional to 2,719.90, 3,753.53 and 1,540.96

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Solution

The fourth proportional to 2,719.90, 3,753.53 and 1,540.96 is: 2,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.90 : 3,753.53 = 1,540.96 : x
  2. Step 2: Convert to fraction form
    2,719.90/3,753.53 = 1,540.96/x
  3. Step 3: Cross multiply
    2,719.90x = 3,753.53 × 1,540.96
  4. Step 4: Simplify right side
    2,719.90x = 5,784,051.02
  5. Step 5: Solve for x
    x = 5,784,051.02/2,719.90
  6. Step 6: Final answer
    x = 2,126.57

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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.