Home / 3,379.12-5,067.48-1,431.48

Finding the Fourth Proportional to 3,379.12, 5,067.48 and 1,431.48

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Solution

The fourth proportional to 3,379.12, 5,067.48 and 1,431.48 is: 2,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.12 : 5,067.48 = 1,431.48 : x
  2. Step 2: Convert to fraction form
    3,379.12/5,067.48 = 1,431.48/x
  3. Step 3: Cross multiply
    3,379.12x = 5,067.48 × 1,431.48
  4. Step 4: Simplify right side
    3,379.12x = 7,253,996.27
  5. Step 5: Solve for x
    x = 7,253,996.27/3,379.12
  6. Step 6: Final answer
    x = 2,146.71

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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.