Home / 2,761.52-4,135.68-1,587.92

Finding the Fourth Proportional to 2,761.52, 4,135.68 and 1,587.92

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Solution

The fourth proportional to 2,761.52, 4,135.68 and 1,587.92 is: 2,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.52 : 4,135.68 = 1,587.92 : x
  2. Step 2: Convert to fraction form
    2,761.52/4,135.68 = 1,587.92/x
  3. Step 3: Cross multiply
    2,761.52x = 4,135.68 × 1,587.92
  4. Step 4: Simplify right side
    2,761.52x = 6,567,108.31
  5. Step 5: Solve for x
    x = 6,567,108.31/2,761.52
  6. Step 6: Final answer
    x = 2,378.08

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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.