Home / 3,923.97-5,879.26-2,170.18

Finding the Fourth Proportional to 3,923.97, 5,879.26 and 2,170.18

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Solution

The fourth proportional to 3,923.97, 5,879.26 and 2,170.18 is: 3,251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.97 : 5,879.26 = 2,170.18 : x
  2. Step 2: Convert to fraction form
    3,923.97/5,879.26 = 2,170.18/x
  3. Step 3: Cross multiply
    3,923.97x = 5,879.26 × 2,170.18
  4. Step 4: Simplify right side
    3,923.97x = 12,759,052.47
  5. Step 5: Solve for x
    x = 12,759,052.47/3,923.97
  6. Step 6: Final answer
    x = 3,251.57

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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.