Home / 3,385.89-5,079.92-3,125.25

Finding the Fourth Proportional to 3,385.89, 5,079.92 and 3,125.25

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Solution

The fourth proportional to 3,385.89, 5,079.92 and 3,125.25 is: 4,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.89 : 5,079.92 = 3,125.25 : x
  2. Step 2: Convert to fraction form
    3,385.89/5,079.92 = 3,125.25/x
  3. Step 3: Cross multiply
    3,385.89x = 5,079.92 × 3,125.25
  4. Step 4: Simplify right side
    3,385.89x = 15,876,004.35
  5. Step 5: Solve for x
    x = 15,876,004.35/3,385.89
  6. Step 6: Final answer
    x = 4,688.87

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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.