Home / 2,587.83-3,882.33-1,127.40

Finding the Fourth Proportional to 2,587.83, 3,882.33 and 1,127.40

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Solution

The fourth proportional to 2,587.83, 3,882.33 and 1,127.40 is: 1,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.83 : 3,882.33 = 1,127.40 : x
  2. Step 2: Convert to fraction form
    2,587.83/3,882.33 = 1,127.40/x
  3. Step 3: Cross multiply
    2,587.83x = 3,882.33 × 1,127.40
  4. Step 4: Simplify right side
    2,587.83x = 4,376,938.84
  5. Step 5: Solve for x
    x = 4,376,938.84/2,587.83
  6. Step 6: Final answer
    x = 1,691.35

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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.