Home / 2,768.12-4,151.36-2,279.96

Finding the Fourth Proportional to 2,768.12, 4,151.36 and 2,279.96

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Solution

The fourth proportional to 2,768.12, 4,151.36 and 2,279.96 is: 3,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.12 : 4,151.36 = 2,279.96 : x
  2. Step 2: Convert to fraction form
    2,768.12/4,151.36 = 2,279.96/x
  3. Step 3: Cross multiply
    2,768.12x = 4,151.36 × 2,279.96
  4. Step 4: Simplify right side
    2,768.12x = 9,464,919.69
  5. Step 5: Solve for x
    x = 9,464,919.69/2,768.12
  6. Step 6: Final answer
    x = 3,419.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.