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Finding the Fourth Proportional to 3,693.80, 5,537.04 and 1,721.48

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Solution

The fourth proportional to 3,693.80, 5,537.04 and 1,721.48 is: 2,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693.80 : 5,537.04 = 1,721.48 : x
  2. Step 2: Convert to fraction form
    3,693.80/5,537.04 = 1,721.48/x
  3. Step 3: Cross multiply
    3,693.80x = 5,537.04 × 1,721.48
  4. Step 4: Simplify right side
    3,693.80x = 9,531,903.62
  5. Step 5: Solve for x
    x = 9,531,903.62/3,693.80
  6. Step 6: Final answer
    x = 2,580.51

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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.