Home / 5,281.16-7,921.73-2,162.62

Finding the Fourth Proportional to 5,281.16, 7,921.73 and 2,162.62

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Solution

The fourth proportional to 5,281.16, 7,921.73 and 2,162.62 is: 3,243.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.16 : 7,921.73 = 2,162.62 : x
  2. Step 2: Convert to fraction form
    5,281.16/7,921.73 = 2,162.62/x
  3. Step 3: Cross multiply
    5,281.16x = 7,921.73 × 2,162.62
  4. Step 4: Simplify right side
    5,281.16x = 17,131,691.73
  5. Step 5: Solve for x
    x = 17,131,691.73/5,281.16
  6. Step 6: Final answer
    x = 3,243.93

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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.