Home / 2,886.82-4,331.27-939.03

Finding the Fourth Proportional to 2,886.82, 4,331.27 and 939.03

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Solution

The fourth proportional to 2,886.82, 4,331.27 and 939.03 is: 1,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.82 : 4,331.27 = 939.03 : x
  2. Step 2: Convert to fraction form
    2,886.82/4,331.27 = 939.03/x
  3. Step 3: Cross multiply
    2,886.82x = 4,331.27 × 939.03
  4. Step 4: Simplify right side
    2,886.82x = 4,067,192.47
  5. Step 5: Solve for x
    x = 4,067,192.47/2,886.82
  6. Step 6: Final answer
    x = 1,408.88

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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.