Home / 3,806.62-5,251.96-2,127.80

Finding the Fourth Proportional to 3,806.62, 5,251.96 and 2,127.80

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Solution

The fourth proportional to 3,806.62, 5,251.96 and 2,127.80 is: 2,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.62 : 5,251.96 = 2,127.80 : x
  2. Step 2: Convert to fraction form
    3,806.62/5,251.96 = 2,127.80/x
  3. Step 3: Cross multiply
    3,806.62x = 5,251.96 × 2,127.80
  4. Step 4: Simplify right side
    3,806.62x = 11,175,120.49
  5. Step 5: Solve for x
    x = 11,175,120.49/3,806.62
  6. Step 6: Final answer
    x = 2,935.71

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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.