Home / 3,172.92-4,761.40-1,713.08

Finding the Fourth Proportional to 3,172.92, 4,761.40 and 1,713.08

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Solution

The fourth proportional to 3,172.92, 4,761.40 and 1,713.08 is: 2,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.92 : 4,761.40 = 1,713.08 : x
  2. Step 2: Convert to fraction form
    3,172.92/4,761.40 = 1,713.08/x
  3. Step 3: Cross multiply
    3,172.92x = 4,761.40 × 1,713.08
  4. Step 4: Simplify right side
    3,172.92x = 8,156,659.11
  5. Step 5: Solve for x
    x = 8,156,659.11/3,172.92
  6. Step 6: Final answer
    x = 2,570.71

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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.