Home / 2,379.89-3,284.13-1,331.88

Finding the Fourth Proportional to 2,379.89, 3,284.13 and 1,331.88

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Solution

The fourth proportional to 2,379.89, 3,284.13 and 1,331.88 is: 1,837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.89 : 3,284.13 = 1,331.88 : x
  2. Step 2: Convert to fraction form
    2,379.89/3,284.13 = 1,331.88/x
  3. Step 3: Cross multiply
    2,379.89x = 3,284.13 × 1,331.88
  4. Step 4: Simplify right side
    2,379.89x = 4,374,067.06
  5. Step 5: Solve for x
    x = 4,374,067.06/2,379.89
  6. Step 6: Final answer
    x = 1,837.93

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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.