Home / 2,108.97-3,160.20-1,012.23

Finding the Fourth Proportional to 2,108.97, 3,160.20 and 1,012.23

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Solution

The fourth proportional to 2,108.97, 3,160.20 and 1,012.23 is: 1,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.97 : 3,160.20 = 1,012.23 : x
  2. Step 2: Convert to fraction form
    2,108.97/3,160.20 = 1,012.23/x
  3. Step 3: Cross multiply
    2,108.97x = 3,160.20 × 1,012.23
  4. Step 4: Simplify right side
    2,108.97x = 3,198,849.25
  5. Step 5: Solve for x
    x = 3,198,849.25/2,108.97
  6. Step 6: Final answer
    x = 1,516.78

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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.