Home / 3,691.98-5,536.97-2,521.78

Finding the Fourth Proportional to 3,691.98, 5,536.97 and 2,521.78

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Solution

The fourth proportional to 3,691.98, 5,536.97 and 2,521.78 is: 3,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.98 : 5,536.97 = 2,521.78 : x
  2. Step 2: Convert to fraction form
    3,691.98/5,536.97 = 2,521.78/x
  3. Step 3: Cross multiply
    3,691.98x = 5,536.97 × 2,521.78
  4. Step 4: Simplify right side
    3,691.98x = 13,963,020.21
  5. Step 5: Solve for x
    x = 13,963,020.21/3,691.98
  6. Step 6: Final answer
    x = 3,781.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.