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Finding the Fourth Proportional to 1,755.44, 2,633.61 and 659.89

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Solution

The fourth proportional to 1,755.44, 2,633.61 and 659.89 is: 990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.44 : 2,633.61 = 659.89 : x
  2. Step 2: Convert to fraction form
    1,755.44/2,633.61 = 659.89/x
  3. Step 3: Cross multiply
    1,755.44x = 2,633.61 × 659.89
  4. Step 4: Simplify right side
    1,755.44x = 1,737,892.90
  5. Step 5: Solve for x
    x = 1,737,892.90/1,755.44
  6. Step 6: Final answer
    x = 990.00

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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.