Home / 3,391.54-5,087.82-1,200.29

Finding the Fourth Proportional to 3,391.54, 5,087.82 and 1,200.29

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Solution

The fourth proportional to 3,391.54, 5,087.82 and 1,200.29 is: 1,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.54 : 5,087.82 = 1,200.29 : x
  2. Step 2: Convert to fraction form
    3,391.54/5,087.82 = 1,200.29/x
  3. Step 3: Cross multiply
    3,391.54x = 5,087.82 × 1,200.29
  4. Step 4: Simplify right side
    3,391.54x = 6,106,859.47
  5. Step 5: Solve for x
    x = 6,106,859.47/3,391.54
  6. Step 6: Final answer
    x = 1,800.62

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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.