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Finding the Fourth Proportional to 3,969.93, 5,957.57 and 2,122.37

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Solution

The fourth proportional to 3,969.93, 5,957.57 and 2,122.37 is: 3,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.93 : 5,957.57 = 2,122.37 : x
  2. Step 2: Convert to fraction form
    3,969.93/5,957.57 = 2,122.37/x
  3. Step 3: Cross multiply
    3,969.93x = 5,957.57 × 2,122.37
  4. Step 4: Simplify right side
    3,969.93x = 12,644,143.36
  5. Step 5: Solve for x
    x = 12,644,143.36/3,969.93
  6. Step 6: Final answer
    x = 3,184.98

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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.