Home / 3,691.91-5,095.88-2,180.87

Finding the Fourth Proportional to 3,691.91, 5,095.88 and 2,180.87

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Solution

The fourth proportional to 3,691.91, 5,095.88 and 2,180.87 is: 3,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.91 : 5,095.88 = 2,180.87 : x
  2. Step 2: Convert to fraction form
    3,691.91/5,095.88 = 2,180.87/x
  3. Step 3: Cross multiply
    3,691.91x = 5,095.88 × 2,180.87
  4. Step 4: Simplify right side
    3,691.91x = 11,113,431.79
  5. Step 5: Solve for x
    x = 11,113,431.79/3,691.91
  6. Step 6: Final answer
    x = 3,010.22

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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.