Home / 2,327.67-3,212.19-1,279.80

Finding the Fourth Proportional to 2,327.67, 3,212.19 and 1,279.80

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Solution

The fourth proportional to 2,327.67, 3,212.19 and 1,279.80 is: 1,766.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.67 : 3,212.19 = 1,279.80 : x
  2. Step 2: Convert to fraction form
    2,327.67/3,212.19 = 1,279.80/x
  3. Step 3: Cross multiply
    2,327.67x = 3,212.19 × 1,279.80
  4. Step 4: Simplify right side
    2,327.67x = 4,110,960.76
  5. Step 5: Solve for x
    x = 4,110,960.76/2,327.67
  6. Step 6: Final answer
    x = 1,766.13

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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.