Home / 2,747.82-4,122.45-1,209.18

Finding the Fourth Proportional to 2,747.82, 4,122.45 and 1,209.18

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Solution

The fourth proportional to 2,747.82, 4,122.45 and 1,209.18 is: 1,814.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.82 : 4,122.45 = 1,209.18 : x
  2. Step 2: Convert to fraction form
    2,747.82/4,122.45 = 1,209.18/x
  3. Step 3: Cross multiply
    2,747.82x = 4,122.45 × 1,209.18
  4. Step 4: Simplify right side
    2,747.82x = 4,984,784.09
  5. Step 5: Solve for x
    x = 4,984,784.09/2,747.82
  6. Step 6: Final answer
    x = 1,814.09

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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.