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Finding the Fourth Proportional to 2,272.78, 3,407.58 and 884.95

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Solution

The fourth proportional to 2,272.78, 3,407.58 and 884.95 is: 1,326.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.78 : 3,407.58 = 884.95 : x
  2. Step 2: Convert to fraction form
    2,272.78/3,407.58 = 884.95/x
  3. Step 3: Cross multiply
    2,272.78x = 3,407.58 × 884.95
  4. Step 4: Simplify right side
    2,272.78x = 3,015,537.92
  5. Step 5: Solve for x
    x = 3,015,537.92/2,272.78
  6. Step 6: Final answer
    x = 1,326.81

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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.