Home / 2,717.55-3,750.19-1,538.61

Finding the Fourth Proportional to 2,717.55, 3,750.19 and 1,538.61

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Solution

The fourth proportional to 2,717.55, 3,750.19 and 1,538.61 is: 2,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.55 : 3,750.19 = 1,538.61 : x
  2. Step 2: Convert to fraction form
    2,717.55/3,750.19 = 1,538.61/x
  3. Step 3: Cross multiply
    2,717.55x = 3,750.19 × 1,538.61
  4. Step 4: Simplify right side
    2,717.55x = 5,770,061.08
  5. Step 5: Solve for x
    x = 5,770,061.08/2,717.55
  6. Step 6: Final answer
    x = 2,123.26

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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.