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Finding the Fourth Proportional to 3,672.36, 5,513.40 and 3,366.72

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Solution

The fourth proportional to 3,672.36, 5,513.40 and 3,366.72 is: 5,054.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.36 : 5,513.40 = 3,366.72 : x
  2. Step 2: Convert to fraction form
    3,672.36/5,513.40 = 3,366.72/x
  3. Step 3: Cross multiply
    3,672.36x = 5,513.40 × 3,366.72
  4. Step 4: Simplify right side
    3,672.36x = 18,562,074.05
  5. Step 5: Solve for x
    x = 18,562,074.05/3,672.36
  6. Step 6: Final answer
    x = 5,054.54

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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.