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Finding the Fourth Proportional to 3,202.80, 4,806 and 1,558.68

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Solution

The fourth proportional to 3,202.80, 4,806 and 1,558.68 is: 2,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.80 : 4,806 = 1,558.68 : x
  2. Step 2: Convert to fraction form
    3,202.80/4,806 = 1,558.68/x
  3. Step 3: Cross multiply
    3,202.80x = 4,806 × 1,558.68
  4. Step 4: Simplify right side
    3,202.80x = 7,491,016.08
  5. Step 5: Solve for x
    x = 7,491,016.08/3,202.80
  6. Step 6: Final answer
    x = 2,338.90

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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.