Home / 3,399.28-5,099.73-1,319.33

Finding the Fourth Proportional to 3,399.28, 5,099.73 and 1,319.33

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Solution

The fourth proportional to 3,399.28, 5,099.73 and 1,319.33 is: 1,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.28 : 5,099.73 = 1,319.33 : x
  2. Step 2: Convert to fraction form
    3,399.28/5,099.73 = 1,319.33/x
  3. Step 3: Cross multiply
    3,399.28x = 5,099.73 × 1,319.33
  4. Step 4: Simplify right side
    3,399.28x = 6,728,234.58
  5. Step 5: Solve for x
    x = 6,728,234.58/3,399.28
  6. Step 6: Final answer
    x = 1,979.31

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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.