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Finding the Fourth Proportional to 5,481.14, 8,218.78 and 2,846

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Solution

The fourth proportional to 5,481.14, 8,218.78 and 2,846 is: 4,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.14 : 8,218.78 = 2,846 : x
  2. Step 2: Convert to fraction form
    5,481.14/8,218.78 = 2,846/x
  3. Step 3: Cross multiply
    5,481.14x = 8,218.78 × 2,846
  4. Step 4: Simplify right side
    5,481.14x = 23,390,647.88
  5. Step 5: Solve for x
    x = 23,390,647.88/5,481.14
  6. Step 6: Final answer
    x = 4,267.48

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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.