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Finding the Fourth Proportional to 7,410.95, 11,120.78 and 2,734.22

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Solution

The fourth proportional to 7,410.95, 11,120.78 and 2,734.22 is: 4,102.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.95 : 11,120.78 = 2,734.22 : x
  2. Step 2: Convert to fraction form
    7,410.95/11,120.78 = 2,734.22/x
  3. Step 3: Cross multiply
    7,410.95x = 11,120.78 × 2,734.22
  4. Step 4: Simplify right side
    7,410.95x = 30,406,589.82
  5. Step 5: Solve for x
    x = 30,406,589.82/7,410.95
  6. Step 6: Final answer
    x = 4,102.93

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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.