Home / 5,712.78-8,552.75-4,221.97

Finding the Fourth Proportional to 5,712.78, 8,552.75 and 4,221.97

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Solution

The fourth proportional to 5,712.78, 8,552.75 and 4,221.97 is: 6,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.78 : 8,552.75 = 4,221.97 : x
  2. Step 2: Convert to fraction form
    5,712.78/8,552.75 = 4,221.97/x
  3. Step 3: Cross multiply
    5,712.78x = 8,552.75 × 4,221.97
  4. Step 4: Simplify right side
    5,712.78x = 36,109,453.92
  5. Step 5: Solve for x
    x = 36,109,453.92/5,712.78
  6. Step 6: Final answer
    x = 6,320.82

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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.