Home / 3,946.14-5,469.18-3,872.33

Finding the Fourth Proportional to 3,946.14, 5,469.18 and 3,872.33

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Solution

The fourth proportional to 3,946.14, 5,469.18 and 3,872.33 is: 5,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.14 : 5,469.18 = 3,872.33 : x
  2. Step 2: Convert to fraction form
    3,946.14/5,469.18 = 3,872.33/x
  3. Step 3: Cross multiply
    3,946.14x = 5,469.18 × 3,872.33
  4. Step 4: Simplify right side
    3,946.14x = 21,178,449.70
  5. Step 5: Solve for x
    x = 21,178,449.70/3,946.14
  6. Step 6: Final answer
    x = 5,366.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.