Home / 2,327.49-3,211.97-1,279.58

Finding the Fourth Proportional to 2,327.49, 3,211.97 and 1,279.58

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Solution

The fourth proportional to 2,327.49, 3,211.97 and 1,279.58 is: 1,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.49 : 3,211.97 = 1,279.58 : x
  2. Step 2: Convert to fraction form
    2,327.49/3,211.97 = 1,279.58/x
  3. Step 3: Cross multiply
    2,327.49x = 3,211.97 × 1,279.58
  4. Step 4: Simplify right side
    2,327.49x = 4,109,950.11
  5. Step 5: Solve for x
    x = 4,109,950.11/2,327.49
  6. Step 6: Final answer
    x = 1,765.83

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1.5x scale

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.