Home / 3,170.92-4,375.92-1,911.96

Finding the Fourth Proportional to 3,170.92, 4,375.92 and 1,911.96

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Solution

The fourth proportional to 3,170.92, 4,375.92 and 1,911.96 is: 2,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.92 : 4,375.92 = 1,911.96 : x
  2. Step 2: Convert to fraction form
    3,170.92/4,375.92 = 1,911.96/x
  3. Step 3: Cross multiply
    3,170.92x = 4,375.92 × 1,911.96
  4. Step 4: Simplify right side
    3,170.92x = 8,366,584.00
  5. Step 5: Solve for x
    x = 8,366,584.00/3,170.92
  6. Step 6: Final answer
    x = 2,638.54

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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.