Home / 5,385.96-8,067.06-3,921.75

Finding the Fourth Proportional to 5,385.96, 8,067.06 and 3,921.75

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Solution

The fourth proportional to 5,385.96, 8,067.06 and 3,921.75 is: 5,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.96 : 8,067.06 = 3,921.75 : x
  2. Step 2: Convert to fraction form
    5,385.96/8,067.06 = 3,921.75/x
  3. Step 3: Cross multiply
    5,385.96x = 8,067.06 × 3,921.75
  4. Step 4: Simplify right side
    5,385.96x = 31,636,992.56
  5. Step 5: Solve for x
    x = 31,636,992.56/5,385.96
  6. Step 6: Final answer
    x = 5,873.97

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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.