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Finding the Fourth Proportional to 3,963.41, 5,946.02 and 2,113.55

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Solution

The fourth proportional to 3,963.41, 5,946.02 and 2,113.55 is: 3,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.41 : 5,946.02 = 2,113.55 : x
  2. Step 2: Convert to fraction form
    3,963.41/5,946.02 = 2,113.55/x
  3. Step 3: Cross multiply
    3,963.41x = 5,946.02 × 2,113.55
  4. Step 4: Simplify right side
    3,963.41x = 12,567,170.27
  5. Step 5: Solve for x
    x = 12,567,170.27/3,963.41
  6. Step 6: Final answer
    x = 3,170.80

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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.