Home / 3,399.70-5,100.45-1,208.20

Finding the Fourth Proportional to 3,399.70, 5,100.45 and 1,208.20

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Solution

The fourth proportional to 3,399.70, 5,100.45 and 1,208.20 is: 1,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.70 : 5,100.45 = 1,208.20 : x
  2. Step 2: Convert to fraction form
    3,399.70/5,100.45 = 1,208.20/x
  3. Step 3: Cross multiply
    3,399.70x = 5,100.45 × 1,208.20
  4. Step 4: Simplify right side
    3,399.70x = 6,162,363.69
  5. Step 5: Solve for x
    x = 6,162,363.69/3,399.70
  6. Step 6: Final answer
    x = 1,812.62

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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.