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Finding the Fourth Proportional to 3,691.35, 5,537.35 and 1,226.19

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Solution

The fourth proportional to 3,691.35, 5,537.35 and 1,226.19 is: 1,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.35 : 5,537.35 = 1,226.19 : x
  2. Step 2: Convert to fraction form
    3,691.35/5,537.35 = 1,226.19/x
  3. Step 3: Cross multiply
    3,691.35x = 5,537.35 × 1,226.19
  4. Step 4: Simplify right side
    3,691.35x = 6,789,843.20
  5. Step 5: Solve for x
    x = 6,789,843.20/3,691.35
  6. Step 6: Final answer
    x = 1,839.39

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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.