Home / 3,399.57-5,099.42-1,319.36

Finding the Fourth Proportional to 3,399.57, 5,099.42 and 1,319.36

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Solution

The fourth proportional to 3,399.57, 5,099.42 and 1,319.36 is: 1,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.57 : 5,099.42 = 1,319.36 : x
  2. Step 2: Convert to fraction form
    3,399.57/5,099.42 = 1,319.36/x
  3. Step 3: Cross multiply
    3,399.57x = 5,099.42 × 1,319.36
  4. Step 4: Simplify right side
    3,399.57x = 6,727,948.57
  5. Step 5: Solve for x
    x = 6,727,948.57/3,399.57
  6. Step 6: Final answer
    x = 1,979.06

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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.