Home / 1,993.35-2,751.17-1,247.61

Finding the Fourth Proportional to 1,993.35, 2,751.17 and 1,247.61

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Solution

The fourth proportional to 1,993.35, 2,751.17 and 1,247.61 is: 1,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.35 : 2,751.17 = 1,247.61 : x
  2. Step 2: Convert to fraction form
    1,993.35/2,751.17 = 1,247.61/x
  3. Step 3: Cross multiply
    1,993.35x = 2,751.17 × 1,247.61
  4. Step 4: Simplify right side
    1,993.35x = 3,432,380.97
  5. Step 5: Solve for x
    x = 3,432,380.97/1,993.35
  6. Step 6: Final answer
    x = 1,721.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.