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Finding the Fourth Proportional to 6,651.85, 9,179.61 and 3,667.80

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Solution

The fourth proportional to 6,651.85, 9,179.61 and 3,667.80 is: 5,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.85 : 9,179.61 = 3,667.80 : x
  2. Step 2: Convert to fraction form
    6,651.85/9,179.61 = 3,667.80/x
  3. Step 3: Cross multiply
    6,651.85x = 9,179.61 × 3,667.80
  4. Step 4: Simplify right side
    6,651.85x = 33,668,973.56
  5. Step 5: Solve for x
    x = 33,668,973.56/6,651.85
  6. Step 6: Final answer
    x = 5,061.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.