Home / 2,131.43-3,201.99-1,508.18

Finding the Fourth Proportional to 2,131.43, 3,201.99 and 1,508.18

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Solution

The fourth proportional to 2,131.43, 3,201.99 and 1,508.18 is: 2,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.43 : 3,201.99 = 1,508.18 : x
  2. Step 2: Convert to fraction form
    2,131.43/3,201.99 = 1,508.18/x
  3. Step 3: Cross multiply
    2,131.43x = 3,201.99 × 1,508.18
  4. Step 4: Simplify right side
    2,131.43x = 4,829,163.70
  5. Step 5: Solve for x
    x = 4,829,163.70/2,131.43
  6. Step 6: Final answer
    x = 2,265.69

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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.