Home / 3,854.80-5,319.62-2,086.42

Finding the Fourth Proportional to 3,854.80, 5,319.62 and 2,086.42

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Solution

The fourth proportional to 3,854.80, 5,319.62 and 2,086.42 is: 2,879.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.80 : 5,319.62 = 2,086.42 : x
  2. Step 2: Convert to fraction form
    3,854.80/5,319.62 = 2,086.42/x
  3. Step 3: Cross multiply
    3,854.80x = 5,319.62 × 2,086.42
  4. Step 4: Simplify right side
    3,854.80x = 11,098,961.56
  5. Step 5: Solve for x
    x = 11,098,961.56/3,854.80
  6. Step 6: Final answer
    x = 2,879.26

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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.