Home / 5,179.91-7,768.76-1,481.16

Finding the Fourth Proportional to 5,179.91, 7,768.76 and 1,481.16

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Solution

The fourth proportional to 5,179.91, 7,768.76 and 1,481.16 is: 2,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.91 : 7,768.76 = 1,481.16 : x
  2. Step 2: Convert to fraction form
    5,179.91/7,768.76 = 1,481.16/x
  3. Step 3: Cross multiply
    5,179.91x = 7,768.76 × 1,481.16
  4. Step 4: Simplify right side
    5,179.91x = 11,506,776.56
  5. Step 5: Solve for x
    x = 11,506,776.56/5,179.91
  6. Step 6: Final answer
    x = 2,221.42

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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.