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Finding the Fourth Proportional to 3,693.79, 5,538.38 and 1,227.97

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Solution

The fourth proportional to 3,693.79, 5,538.38 and 1,227.97 is: 1,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693.79 : 5,538.38 = 1,227.97 : x
  2. Step 2: Convert to fraction form
    3,693.79/5,538.38 = 1,227.97/x
  3. Step 3: Cross multiply
    3,693.79x = 5,538.38 × 1,227.97
  4. Step 4: Simplify right side
    3,693.79x = 6,800,930.66
  5. Step 5: Solve for x
    x = 6,800,930.66/3,693.79
  6. Step 6: Final answer
    x = 1,841.18

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1.5x scale

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.