Home / 3,191.60-4,791.30-1,805.90

Finding the Fourth Proportional to 3,191.60, 4,791.30 and 1,805.90

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Solution

The fourth proportional to 3,191.60, 4,791.30 and 1,805.90 is: 2,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.60 : 4,791.30 = 1,805.90 : x
  2. Step 2: Convert to fraction form
    3,191.60/4,791.30 = 1,805.90/x
  3. Step 3: Cross multiply
    3,191.60x = 4,791.30 × 1,805.90
  4. Step 4: Simplify right side
    3,191.60x = 8,652,608.67
  5. Step 5: Solve for x
    x = 8,652,608.67/3,191.60
  6. Step 6: Final answer
    x = 2,711.06

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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.