Home / 2,327.62-3,212.10-1,279.68

Finding the Fourth Proportional to 2,327.62, 3,212.10 and 1,279.68

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Solution

The fourth proportional to 2,327.62, 3,212.10 and 1,279.68 is: 1,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.62 : 3,212.10 = 1,279.68 : x
  2. Step 2: Convert to fraction form
    2,327.62/3,212.10 = 1,279.68/x
  3. Step 3: Cross multiply
    2,327.62x = 3,212.10 × 1,279.68
  4. Step 4: Simplify right side
    2,327.62x = 4,110,460.13
  5. Step 5: Solve for x
    x = 4,110,460.13/2,327.62
  6. Step 6: Final answer
    x = 1,765.95

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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.