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Finding the Fourth Proportional to 3,072.96, 4,610.25 and 881.82

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Solution

The fourth proportional to 3,072.96, 4,610.25 and 881.82 is: 1,322.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.96 : 4,610.25 = 881.82 : x
  2. Step 2: Convert to fraction form
    3,072.96/4,610.25 = 881.82/x
  3. Step 3: Cross multiply
    3,072.96x = 4,610.25 × 881.82
  4. Step 4: Simplify right side
    3,072.96x = 4,065,410.66
  5. Step 5: Solve for x
    x = 4,065,410.66/3,072.96
  6. Step 6: Final answer
    x = 1,322.96

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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.