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Finding the Fourth Proportional to 2,266.82, 3,128.27 and 1,272.17

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Solution

The fourth proportional to 2,266.82, 3,128.27 and 1,272.17 is: 1,755.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.82 : 3,128.27 = 1,272.17 : x
  2. Step 2: Convert to fraction form
    2,266.82/3,128.27 = 1,272.17/x
  3. Step 3: Cross multiply
    2,266.82x = 3,128.27 × 1,272.17
  4. Step 4: Simplify right side
    2,266.82x = 3,979,691.25
  5. Step 5: Solve for x
    x = 3,979,691.25/2,266.82
  6. Step 6: Final answer
    x = 1,755.63

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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.