Home / 2,747.56-4,122.68-1,286.44

Finding the Fourth Proportional to 2,747.56, 4,122.68 and 1,286.44

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Solution

The fourth proportional to 2,747.56, 4,122.68 and 1,286.44 is: 1,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.56 : 4,122.68 = 1,286.44 : x
  2. Step 2: Convert to fraction form
    2,747.56/4,122.68 = 1,286.44/x
  3. Step 3: Cross multiply
    2,747.56x = 4,122.68 × 1,286.44
  4. Step 4: Simplify right side
    2,747.56x = 5,303,580.46
  5. Step 5: Solve for x
    x = 5,303,580.46/2,747.56
  6. Step 6: Final answer
    x = 1,930.29

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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.