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Finding the Fourth Proportional to 1,729.88, 2,375.63 and 1,481.20

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Solution

The fourth proportional to 1,729.88, 2,375.63 and 1,481.20 is: 2,034.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.88 : 2,375.63 = 1,481.20 : x
  2. Step 2: Convert to fraction form
    1,729.88/2,375.63 = 1,481.20/x
  3. Step 3: Cross multiply
    1,729.88x = 2,375.63 × 1,481.20
  4. Step 4: Simplify right side
    1,729.88x = 3,518,783.16
  5. Step 5: Solve for x
    x = 3,518,783.16/1,729.88
  6. Step 6: Final answer
    x = 2,034.12

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.