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Finding the Fourth Proportional to 3,963.96, 5,928.46 and 3,528.09

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Solution

The fourth proportional to 3,963.96, 5,928.46 and 3,528.09 is: 5,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.96 : 5,928.46 = 3,528.09 : x
  2. Step 2: Convert to fraction form
    3,963.96/5,928.46 = 3,528.09/x
  3. Step 3: Cross multiply
    3,963.96x = 5,928.46 × 3,528.09
  4. Step 4: Simplify right side
    3,963.96x = 20,916,131.62
  5. Step 5: Solve for x
    x = 20,916,131.62/3,963.96
  6. Step 6: Final answer
    x = 5,276.57

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1.5x scale

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.