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Finding the Fourth Proportional to 1,755.74, 2,633.25 and 659.73

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Solution

The fourth proportional to 1,755.74, 2,633.25 and 659.73 is: 989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.74 : 2,633.25 = 659.73 : x
  2. Step 2: Convert to fraction form
    1,755.74/2,633.25 = 659.73/x
  3. Step 3: Cross multiply
    1,755.74x = 2,633.25 × 659.73
  4. Step 4: Simplify right side
    1,755.74x = 1,737,234.02
  5. Step 5: Solve for x
    x = 1,737,234.02/1,755.74
  6. Step 6: Final answer
    x = 989.46

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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.