Home / 3,288.67-4,928.76-1,338.61

Finding the Fourth Proportional to 3,288.67, 4,928.76 and 1,338.61

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Solution

The fourth proportional to 3,288.67, 4,928.76 and 1,338.61 is: 2,006.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.67 : 4,928.76 = 1,338.61 : x
  2. Step 2: Convert to fraction form
    3,288.67/4,928.76 = 1,338.61/x
  3. Step 3: Cross multiply
    3,288.67x = 4,928.76 × 1,338.61
  4. Step 4: Simplify right side
    3,288.67x = 6,597,687.42
  5. Step 5: Solve for x
    x = 6,597,687.42/3,288.67
  6. Step 6: Final answer
    x = 2,006.19

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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.