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Finding the Fourth Proportional to 3,963.62, 5,940.95 and 1,880.73

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Solution

The fourth proportional to 3,963.62, 5,940.95 and 1,880.73 is: 2,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.62 : 5,940.95 = 1,880.73 : x
  2. Step 2: Convert to fraction form
    3,963.62/5,940.95 = 1,880.73/x
  3. Step 3: Cross multiply
    3,963.62x = 5,940.95 × 1,880.73
  4. Step 4: Simplify right side
    3,963.62x = 11,173,313.49
  5. Step 5: Solve for x
    x = 11,173,313.49/3,963.62
  6. Step 6: Final answer
    x = 2,818.97

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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.