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Finding the Fourth Proportional to 2,587.83, 3,882.35 and 738.97

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Solution

The fourth proportional to 2,587.83, 3,882.35 and 738.97 is: 1,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.83 : 3,882.35 = 738.97 : x
  2. Step 2: Convert to fraction form
    2,587.83/3,882.35 = 738.97/x
  3. Step 3: Cross multiply
    2,587.83x = 3,882.35 × 738.97
  4. Step 4: Simplify right side
    2,587.83x = 2,868,932.32
  5. Step 5: Solve for x
    x = 2,868,932.32/2,587.83
  6. Step 6: Final answer
    x = 1,108.63

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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.