Home / 2,879.80-4,320.92-1,712.04

Finding the Fourth Proportional to 2,879.80, 4,320.92 and 1,712.04

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Solution

The fourth proportional to 2,879.80, 4,320.92 and 1,712.04 is: 2,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.80 : 4,320.92 = 1,712.04 : x
  2. Step 2: Convert to fraction form
    2,879.80/4,320.92 = 1,712.04/x
  3. Step 3: Cross multiply
    2,879.80x = 4,320.92 × 1,712.04
  4. Step 4: Simplify right side
    2,879.80x = 7,397,581.35
  5. Step 5: Solve for x
    x = 7,397,581.35/2,879.80
  6. Step 6: Final answer
    x = 2,568.78

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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.