Home / 2,587.84-3,882.36-1,127.41

Finding the Fourth Proportional to 2,587.84, 3,882.36 and 1,127.41

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Solution

The fourth proportional to 2,587.84, 3,882.36 and 1,127.41 is: 1,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.84 : 3,882.36 = 1,127.41 : x
  2. Step 2: Convert to fraction form
    2,587.84/3,882.36 = 1,127.41/x
  3. Step 3: Cross multiply
    2,587.84x = 3,882.36 × 1,127.41
  4. Step 4: Simplify right side
    2,587.84x = 4,377,016.93
  5. Step 5: Solve for x
    x = 4,377,016.93/2,587.84
  6. Step 6: Final answer
    x = 1,691.38

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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.