Home / 3,399.29-5,092.36-1,990.30

Finding the Fourth Proportional to 3,399.29, 5,092.36 and 1,990.30

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Solution

The fourth proportional to 3,399.29, 5,092.36 and 1,990.30 is: 2,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.29 : 5,092.36 = 1,990.30 : x
  2. Step 2: Convert to fraction form
    3,399.29/5,092.36 = 1,990.30/x
  3. Step 3: Cross multiply
    3,399.29x = 5,092.36 × 1,990.30
  4. Step 4: Simplify right side
    3,399.29x = 10,135,288.69
  5. Step 5: Solve for x
    x = 10,135,288.69/3,399.29
  6. Step 6: Final answer
    x = 2,981.59

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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.