Home / 1,872.72-2,584.92-1,086.96

Finding the Fourth Proportional to 1,872.72, 2,584.92 and 1,086.96

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Solution

The fourth proportional to 1,872.72, 2,584.92 and 1,086.96 is: 1,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.72 : 2,584.92 = 1,086.96 : x
  2. Step 2: Convert to fraction form
    1,872.72/2,584.92 = 1,086.96/x
  3. Step 3: Cross multiply
    1,872.72x = 2,584.92 × 1,086.96
  4. Step 4: Simplify right side
    1,872.72x = 2,809,704.64
  5. Step 5: Solve for x
    x = 2,809,704.64/1,872.72
  6. Step 6: Final answer
    x = 1,500.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.