Home / 3,197.90-4,791.97-2,154.05

Finding the Fourth Proportional to 3,197.90, 4,791.97 and 2,154.05

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Solution

The fourth proportional to 3,197.90, 4,791.97 and 2,154.05 is: 3,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.90 : 4,791.97 = 2,154.05 : x
  2. Step 2: Convert to fraction form
    3,197.90/4,791.97 = 2,154.05/x
  3. Step 3: Cross multiply
    3,197.90x = 4,791.97 × 2,154.05
  4. Step 4: Simplify right side
    3,197.90x = 10,322,142.98
  5. Step 5: Solve for x
    x = 10,322,142.98/3,197.90
  6. Step 6: Final answer
    x = 3,227.79

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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.