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Finding the Fourth Proportional to 7,445.60, 11,168.67 and 3,745.82

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Solution

The fourth proportional to 7,445.60, 11,168.67 and 3,745.82 is: 5,618.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.60 : 11,168.67 = 3,745.82 : x
  2. Step 2: Convert to fraction form
    7,445.60/11,168.67 = 3,745.82/x
  3. Step 3: Cross multiply
    7,445.60x = 11,168.67 × 3,745.82
  4. Step 4: Simplify right side
    7,445.60x = 41,835,757.57
  5. Step 5: Solve for x
    x = 41,835,757.57/7,445.60
  6. Step 6: Final answer
    x = 5,618.86

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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.