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Finding the Fourth Proportional to 3,806.81, 5,258.48 and 3,063.63

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Solution

The fourth proportional to 3,806.81, 5,258.48 and 3,063.63 is: 4,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.81 : 5,258.48 = 3,063.63 : x
  2. Step 2: Convert to fraction form
    3,806.81/5,258.48 = 3,063.63/x
  3. Step 3: Cross multiply
    3,806.81x = 5,258.48 × 3,063.63
  4. Step 4: Simplify right side
    3,806.81x = 16,110,037.08
  5. Step 5: Solve for x
    x = 16,110,037.08/3,806.81
  6. Step 6: Final answer
    x = 4,231.90

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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.