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Finding the Fourth Proportional to 5,091.14, 7,636.30 and 3,616.72

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Solution

The fourth proportional to 5,091.14, 7,636.30 and 3,616.72 is: 5,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.14 : 7,636.30 = 3,616.72 : x
  2. Step 2: Convert to fraction form
    5,091.14/7,636.30 = 3,616.72/x
  3. Step 3: Cross multiply
    5,091.14x = 7,636.30 × 3,616.72
  4. Step 4: Simplify right side
    5,091.14x = 27,618,358.94
  5. Step 5: Solve for x
    x = 27,618,358.94/5,091.14
  6. Step 6: Final answer
    x = 5,424.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.