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Finding the Fourth Proportional to 3,761.82, 5,651.39 and 2,653.79

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Solution

The fourth proportional to 3,761.82, 5,651.39 and 2,653.79 is: 3,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.82 : 5,651.39 = 2,653.79 : x
  2. Step 2: Convert to fraction form
    3,761.82/5,651.39 = 2,653.79/x
  3. Step 3: Cross multiply
    3,761.82x = 5,651.39 × 2,653.79
  4. Step 4: Simplify right side
    3,761.82x = 14,997,589.00
  5. Step 5: Solve for x
    x = 14,997,589.00/3,761.82
  6. Step 6: Final answer
    x = 3,986.79

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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.