Home / 3,718.38-5,131.17-2,539.74

Finding the Fourth Proportional to 3,718.38, 5,131.17 and 2,539.74

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Solution

The fourth proportional to 3,718.38, 5,131.17 and 2,539.74 is: 3,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.38 : 5,131.17 = 2,539.74 : x
  2. Step 2: Convert to fraction form
    3,718.38/5,131.17 = 2,539.74/x
  3. Step 3: Cross multiply
    3,718.38x = 5,131.17 × 2,539.74
  4. Step 4: Simplify right side
    3,718.38x = 13,031,837.70
  5. Step 5: Solve for x
    x = 13,031,837.70/3,718.38
  6. Step 6: Final answer
    x = 3,504.71

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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.