Home / 5,629.92-7,768.88-3,112

Finding the Fourth Proportional to 5,629.92, 7,768.88 and 3,112

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Solution

The fourth proportional to 5,629.92, 7,768.88 and 3,112 is: 4,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.92 : 7,768.88 = 3,112 : x
  2. Step 2: Convert to fraction form
    5,629.92/7,768.88 = 3,112/x
  3. Step 3: Cross multiply
    5,629.92x = 7,768.88 × 3,112
  4. Step 4: Simplify right side
    5,629.92x = 24,176,754.56
  5. Step 5: Solve for x
    x = 24,176,754.56/5,629.92
  6. Step 6: Final answer
    x = 4,294.33

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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.