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Finding the Fourth Proportional to 2,272.52, 3,408.44 and 628.71

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Solution

The fourth proportional to 2,272.52, 3,408.44 and 628.71 is: 942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.52 : 3,408.44 = 628.71 : x
  2. Step 2: Convert to fraction form
    2,272.52/3,408.44 = 628.71/x
  3. Step 3: Cross multiply
    2,272.52x = 3,408.44 × 628.71
  4. Step 4: Simplify right side
    2,272.52x = 2,142,917.17
  5. Step 5: Solve for x
    x = 2,142,917.17/2,272.52
  6. Step 6: Final answer
    x = 942.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.