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Finding the Fourth Proportional to 3,960.09, 5,942.20 and 2,873.43

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Solution

The fourth proportional to 3,960.09, 5,942.20 and 2,873.43 is: 4,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.09 : 5,942.20 = 2,873.43 : x
  2. Step 2: Convert to fraction form
    3,960.09/5,942.20 = 2,873.43/x
  3. Step 3: Cross multiply
    3,960.09x = 5,942.20 × 2,873.43
  4. Step 4: Simplify right side
    3,960.09x = 17,074,485.32
  5. Step 5: Solve for x
    x = 17,074,485.32/3,960.09
  6. Step 6: Final answer
    x = 4,311.64

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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.