Home / 2,091.62-2,884.84-1,531.89

Finding the Fourth Proportional to 2,091.62, 2,884.84 and 1,531.89

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Solution

The fourth proportional to 2,091.62, 2,884.84 and 1,531.89 is: 2,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.62 : 2,884.84 = 1,531.89 : x
  2. Step 2: Convert to fraction form
    2,091.62/2,884.84 = 1,531.89/x
  3. Step 3: Cross multiply
    2,091.62x = 2,884.84 × 1,531.89
  4. Step 4: Simplify right side
    2,091.62x = 4,419,253.72
  5. Step 5: Solve for x
    x = 4,419,253.72/2,091.62
  6. Step 6: Final answer
    x = 2,112.84

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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.