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Finding the Fourth Proportional to 3,952.86, 5,454.41 and 2,274

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Solution

The fourth proportional to 3,952.86, 5,454.41 and 2,274 is: 3,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.86 : 5,454.41 = 2,274 : x
  2. Step 2: Convert to fraction form
    3,952.86/5,454.41 = 2,274/x
  3. Step 3: Cross multiply
    3,952.86x = 5,454.41 × 2,274
  4. Step 4: Simplify right side
    3,952.86x = 12,403,316.97
  5. Step 5: Solve for x
    x = 12,403,316.97/3,952.86
  6. Step 6: Final answer
    x = 3,137.81

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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.