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Finding the Fourth Proportional to 1,252.93, 1,729.19 and 755.82

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Solution

The fourth proportional to 1,252.93, 1,729.19 and 755.82 is: 1,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.93 : 1,729.19 = 755.82 : x
  2. Step 2: Convert to fraction form
    1,252.93/1,729.19 = 755.82/x
  3. Step 3: Cross multiply
    1,252.93x = 1,729.19 × 755.82
  4. Step 4: Simplify right side
    1,252.93x = 1,306,956.39
  5. Step 5: Solve for x
    x = 1,306,956.39/1,252.93
  6. Step 6: Final answer
    x = 1,043.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.