Home / 3,479.38-5,212.11-2,091.95

Finding the Fourth Proportional to 3,479.38, 5,212.11 and 2,091.95

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Solution

The fourth proportional to 3,479.38, 5,212.11 and 2,091.95 is: 3,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.38 : 5,212.11 = 2,091.95 : x
  2. Step 2: Convert to fraction form
    3,479.38/5,212.11 = 2,091.95/x
  3. Step 3: Cross multiply
    3,479.38x = 5,212.11 × 2,091.95
  4. Step 4: Simplify right side
    3,479.38x = 10,903,480.68
  5. Step 5: Solve for x
    x = 10,903,480.68/3,479.38
  6. Step 6: Final answer
    x = 3,133.75

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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.