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Finding the Fourth Proportional to 3,806.80, 5,258.42 and 3,063.54

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Solution

The fourth proportional to 3,806.80, 5,258.42 and 3,063.54 is: 4,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.80 : 5,258.42 = 3,063.54 : x
  2. Step 2: Convert to fraction form
    3,806.80/5,258.42 = 3,063.54/x
  3. Step 3: Cross multiply
    3,806.80x = 5,258.42 × 3,063.54
  4. Step 4: Simplify right side
    3,806.80x = 16,109,380.01
  5. Step 5: Solve for x
    x = 16,109,380.01/3,806.80
  6. Step 6: Final answer
    x = 4,231.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.