Home / 2,120.57-3,180.15-733.54

Finding the Fourth Proportional to 2,120.57, 3,180.15 and 733.54

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Solution

The fourth proportional to 2,120.57, 3,180.15 and 733.54 is: 1,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.57 : 3,180.15 = 733.54 : x
  2. Step 2: Convert to fraction form
    2,120.57/3,180.15 = 733.54/x
  3. Step 3: Cross multiply
    2,120.57x = 3,180.15 × 733.54
  4. Step 4: Simplify right side
    2,120.57x = 2,332,750.80
  5. Step 5: Solve for x
    x = 2,332,750.80/2,120.57
  6. Step 6: Final answer
    x = 1,100.06

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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.