Home / 3,198.31-4,794.38-1,639.05

Finding the Fourth Proportional to 3,198.31, 4,794.38 and 1,639.05

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Solution

The fourth proportional to 3,198.31, 4,794.38 and 1,639.05 is: 2,456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.31 : 4,794.38 = 1,639.05 : x
  2. Step 2: Convert to fraction form
    3,198.31/4,794.38 = 1,639.05/x
  3. Step 3: Cross multiply
    3,198.31x = 4,794.38 × 1,639.05
  4. Step 4: Simplify right side
    3,198.31x = 7,858,196.37
  5. Step 5: Solve for x
    x = 7,858,196.37/3,198.31
  6. Step 6: Final answer
    x = 2,456.99

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1.5x scale

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.