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Finding the Fourth Proportional to 1,729.82, 2,596.12 and 908.58

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Solution

The fourth proportional to 1,729.82, 2,596.12 and 908.58 is: 1,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.82 : 2,596.12 = 908.58 : x
  2. Step 2: Convert to fraction form
    1,729.82/2,596.12 = 908.58/x
  3. Step 3: Cross multiply
    1,729.82x = 2,596.12 × 908.58
  4. Step 4: Simplify right side
    1,729.82x = 2,358,780.44
  5. Step 5: Solve for x
    x = 2,358,780.44/1,729.82
  6. Step 6: Final answer
    x = 1,363.60

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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.