Home / 3,479.20-5,191.86-3,110

Finding the Fourth Proportional to 3,479.20, 5,191.86 and 3,110

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Solution

The fourth proportional to 3,479.20, 5,191.86 and 3,110 is: 4,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.20 : 5,191.86 = 3,110 : x
  2. Step 2: Convert to fraction form
    3,479.20/5,191.86 = 3,110/x
  3. Step 3: Cross multiply
    3,479.20x = 5,191.86 × 3,110
  4. Step 4: Simplify right side
    3,479.20x = 16,146,684.60
  5. Step 5: Solve for x
    x = 16,146,684.60/3,479.20
  6. Step 6: Final answer
    x = 4,640.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.