Home / 2,853.43-4,279.49-1,292.39

Finding the Fourth Proportional to 2,853.43, 4,279.49 and 1,292.39

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Solution

The fourth proportional to 2,853.43, 4,279.49 and 1,292.39 is: 1,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.43 : 4,279.49 = 1,292.39 : x
  2. Step 2: Convert to fraction form
    2,853.43/4,279.49 = 1,292.39/x
  3. Step 3: Cross multiply
    2,853.43x = 4,279.49 × 1,292.39
  4. Step 4: Simplify right side
    2,853.43x = 5,530,745.45
  5. Step 5: Solve for x
    x = 5,530,745.45/2,853.43
  6. Step 6: Final answer
    x = 1,938.28

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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.