Home / 3,126.94-4,691.23-1,279.33

Finding the Fourth Proportional to 3,126.94, 4,691.23 and 1,279.33

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Solution

The fourth proportional to 3,126.94, 4,691.23 and 1,279.33 is: 1,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.94 : 4,691.23 = 1,279.33 : x
  2. Step 2: Convert to fraction form
    3,126.94/4,691.23 = 1,279.33/x
  3. Step 3: Cross multiply
    3,126.94x = 4,691.23 × 1,279.33
  4. Step 4: Simplify right side
    3,126.94x = 6,001,616.35
  5. Step 5: Solve for x
    x = 6,001,616.35/3,126.94
  6. Step 6: Final answer
    x = 1,919.33

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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.