Home / 3,902.54-5,385.50-2,134.16

Finding the Fourth Proportional to 3,902.54, 5,385.50 and 2,134.16

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Solution

The fourth proportional to 3,902.54, 5,385.50 and 2,134.16 is: 2,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.54 : 5,385.50 = 2,134.16 : x
  2. Step 2: Convert to fraction form
    3,902.54/5,385.50 = 2,134.16/x
  3. Step 3: Cross multiply
    3,902.54x = 5,385.50 × 2,134.16
  4. Step 4: Simplify right side
    3,902.54x = 11,493,481.08
  5. Step 5: Solve for x
    x = 11,493,481.08/3,902.54
  6. Step 6: Final answer
    x = 2,945.13

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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.