Home / 3,299.28-4,947.84-1,107.36

Finding the Fourth Proportional to 3,299.28, 4,947.84 and 1,107.36

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Solution

The fourth proportional to 3,299.28, 4,947.84 and 1,107.36 is: 1,660.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.28 : 4,947.84 = 1,107.36 : x
  2. Step 2: Convert to fraction form
    3,299.28/4,947.84 = 1,107.36/x
  3. Step 3: Cross multiply
    3,299.28x = 4,947.84 × 1,107.36
  4. Step 4: Simplify right side
    3,299.28x = 5,479,040.10
  5. Step 5: Solve for x
    x = 5,479,040.10/3,299.28
  6. Step 6: Final answer
    x = 1,660.68

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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.