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Finding the Fourth Proportional to 6,112.76, 8,436.12 and 3,755.72

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Solution

The fourth proportional to 6,112.76, 8,436.12 and 3,755.72 is: 5,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.76 : 8,436.12 = 3,755.72 : x
  2. Step 2: Convert to fraction form
    6,112.76/8,436.12 = 3,755.72/x
  3. Step 3: Cross multiply
    6,112.76x = 8,436.12 × 3,755.72
  4. Step 4: Simplify right side
    6,112.76x = 31,683,704.61
  5. Step 5: Solve for x
    x = 31,683,704.61/6,112.76
  6. Step 6: Final answer
    x = 5,183.21

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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.