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Finding the Fourth Proportional to 3,183.91, 4,776.08 and 843.88

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Solution

The fourth proportional to 3,183.91, 4,776.08 and 843.88 is: 1,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.91 : 4,776.08 = 843.88 : x
  2. Step 2: Convert to fraction form
    3,183.91/4,776.08 = 843.88/x
  3. Step 3: Cross multiply
    3,183.91x = 4,776.08 × 843.88
  4. Step 4: Simplify right side
    3,183.91x = 4,030,422.23
  5. Step 5: Solve for x
    x = 4,030,422.23/3,183.91
  6. Step 6: Final answer
    x = 1,265.87

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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.