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Finding the Fourth Proportional to 3,172.43, 4,757.43 and 2,195.57

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Solution

The fourth proportional to 3,172.43, 4,757.43 and 2,195.57 is: 3,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.43 : 4,757.43 = 2,195.57 : x
  2. Step 2: Convert to fraction form
    3,172.43/4,757.43 = 2,195.57/x
  3. Step 3: Cross multiply
    3,172.43x = 4,757.43 × 2,195.57
  4. Step 4: Simplify right side
    3,172.43x = 10,445,270.59
  5. Step 5: Solve for x
    x = 10,445,270.59/3,172.43
  6. Step 6: Final answer
    x = 3,292.51

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1.5x scale

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.