Home / 3,960.38-5,934.08-2,109.54

Finding the Fourth Proportional to 3,960.38, 5,934.08 and 2,109.54

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Solution

The fourth proportional to 3,960.38, 5,934.08 and 2,109.54 is: 3,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.38 : 5,934.08 = 2,109.54 : x
  2. Step 2: Convert to fraction form
    3,960.38/5,934.08 = 2,109.54/x
  3. Step 3: Cross multiply
    3,960.38x = 5,934.08 × 2,109.54
  4. Step 4: Simplify right side
    3,960.38x = 12,518,179.12
  5. Step 5: Solve for x
    x = 12,518,179.12/3,960.38
  6. Step 6: Final answer
    x = 3,160.85

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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.