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Finding the Fourth Proportional to 1,825.22, 2,738.28 and 851.96

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Solution

The fourth proportional to 1,825.22, 2,738.28 and 851.96 is: 1,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.22 : 2,738.28 = 851.96 : x
  2. Step 2: Convert to fraction form
    1,825.22/2,738.28 = 851.96/x
  3. Step 3: Cross multiply
    1,825.22x = 2,738.28 × 851.96
  4. Step 4: Simplify right side
    1,825.22x = 2,332,905.03
  5. Step 5: Solve for x
    x = 2,332,905.03/1,825.22
  6. Step 6: Final answer
    x = 1,278.15

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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.