Home / 3,179.22-4,388.49-2,391.90

Finding the Fourth Proportional to 3,179.22, 4,388.49 and 2,391.90

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Solution

The fourth proportional to 3,179.22, 4,388.49 and 2,391.90 is: 3,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.22 : 4,388.49 = 2,391.90 : x
  2. Step 2: Convert to fraction form
    3,179.22/4,388.49 = 2,391.90/x
  3. Step 3: Cross multiply
    3,179.22x = 4,388.49 × 2,391.90
  4. Step 4: Simplify right side
    3,179.22x = 10,496,829.23
  5. Step 5: Solve for x
    x = 10,496,829.23/3,179.22
  6. Step 6: Final answer
    x = 3,301.70

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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.