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Finding the Fourth Proportional to 1,729.72, 2,594.94 and 634.09

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Solution

The fourth proportional to 1,729.72, 2,594.94 and 634.09 is: 951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.72 : 2,594.94 = 634.09 : x
  2. Step 2: Convert to fraction form
    1,729.72/2,594.94 = 634.09/x
  3. Step 3: Cross multiply
    1,729.72x = 2,594.94 × 634.09
  4. Step 4: Simplify right side
    1,729.72x = 1,645,425.50
  5. Step 5: Solve for x
    x = 1,645,425.50/1,729.72
  6. Step 6: Final answer
    x = 951.27

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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.