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Finding the Fourth Proportional to 3,949, 5,450.10 and 2,293

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Solution

The fourth proportional to 3,949, 5,450.10 and 2,293 is: 3,164.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949 : 5,450.10 = 2,293 : x
  2. Step 2: Convert to fraction form
    3,949/5,450.10 = 2,293/x
  3. Step 3: Cross multiply
    3,949x = 5,450.10 × 2,293
  4. Step 4: Simplify right side
    3,949x = 12,497,079.30
  5. Step 5: Solve for x
    x = 12,497,079.30/3,949
  6. Step 6: Final answer
    x = 3,164.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.