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Finding the Fourth Proportional to 3,675.88, 5,513.82 and 1,829.31

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Solution

The fourth proportional to 3,675.88, 5,513.82 and 1,829.31 is: 2,743.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.88 : 5,513.82 = 1,829.31 : x
  2. Step 2: Convert to fraction form
    3,675.88/5,513.82 = 1,829.31/x
  3. Step 3: Cross multiply
    3,675.88x = 5,513.82 × 1,829.31
  4. Step 4: Simplify right side
    3,675.88x = 10,086,486.06
  5. Step 5: Solve for x
    x = 10,086,486.06/3,675.88
  6. Step 6: Final answer
    x = 2,743.97

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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.