Home / 2,311.56-3,170.88-2,253.96

Finding the Fourth Proportional to 2,311.56, 3,170.88 and 2,253.96

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Solution

The fourth proportional to 2,311.56, 3,170.88 and 2,253.96 is: 3,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.56 : 3,170.88 = 2,253.96 : x
  2. Step 2: Convert to fraction form
    2,311.56/3,170.88 = 2,253.96/x
  3. Step 3: Cross multiply
    2,311.56x = 3,170.88 × 2,253.96
  4. Step 4: Simplify right side
    2,311.56x = 7,147,036.68
  5. Step 5: Solve for x
    x = 7,147,036.68/2,311.56
  6. Step 6: Final answer
    x = 3,091.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.