Home / 2,327.05-3,211.23-1,279.11

Finding the Fourth Proportional to 2,327.05, 3,211.23 and 1,279.11

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Solution

The fourth proportional to 2,327.05, 3,211.23 and 1,279.11 is: 1,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.05 : 3,211.23 = 1,279.11 : x
  2. Step 2: Convert to fraction form
    2,327.05/3,211.23 = 1,279.11/x
  3. Step 3: Cross multiply
    2,327.05x = 3,211.23 × 1,279.11
  4. Step 4: Simplify right side
    2,327.05x = 4,107,516.41
  5. Step 5: Solve for x
    x = 4,107,516.41/2,327.05
  6. Step 6: Final answer
    x = 1,765.12

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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.