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Finding the Fourth Proportional to 2,054.44, 3,081.12 and 755.20

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Solution

The fourth proportional to 2,054.44, 3,081.12 and 755.20 is: 1,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.44 : 3,081.12 = 755.20 : x
  2. Step 2: Convert to fraction form
    2,054.44/3,081.12 = 755.20/x
  3. Step 3: Cross multiply
    2,054.44x = 3,081.12 × 755.20
  4. Step 4: Simplify right side
    2,054.44x = 2,326,861.82
  5. Step 5: Solve for x
    x = 2,326,861.82/2,054.44
  6. Step 6: Final answer
    x = 1,132.60

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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.