Home / 3,255.78-4,493.68-2,122.87

Finding the Fourth Proportional to 3,255.78, 4,493.68 and 2,122.87

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Solution

The fourth proportional to 3,255.78, 4,493.68 and 2,122.87 is: 2,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.78 : 4,493.68 = 2,122.87 : x
  2. Step 2: Convert to fraction form
    3,255.78/4,493.68 = 2,122.87/x
  3. Step 3: Cross multiply
    3,255.78x = 4,493.68 × 2,122.87
  4. Step 4: Simplify right side
    3,255.78x = 9,539,498.46
  5. Step 5: Solve for x
    x = 9,539,498.46/3,255.78
  6. Step 6: Final answer
    x = 2,930.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.