Home / 5,155.92-7,732.26-2,231.28

Finding the Fourth Proportional to 5,155.92, 7,732.26 and 2,231.28

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Solution

The fourth proportional to 5,155.92, 7,732.26 and 2,231.28 is: 3,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.92 : 7,732.26 = 2,231.28 : x
  2. Step 2: Convert to fraction form
    5,155.92/7,732.26 = 2,231.28/x
  3. Step 3: Cross multiply
    5,155.92x = 7,732.26 × 2,231.28
  4. Step 4: Simplify right side
    5,155.92x = 17,252,837.09
  5. Step 5: Solve for x
    x = 17,252,837.09/5,155.92
  6. Step 6: Final answer
    x = 3,346.22

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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.