Home / 2,727.78-4,092.48-1,267.80

Finding the Fourth Proportional to 2,727.78, 4,092.48 and 1,267.80

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Solution

The fourth proportional to 2,727.78, 4,092.48 and 1,267.80 is: 1,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.78 : 4,092.48 = 1,267.80 : x
  2. Step 2: Convert to fraction form
    2,727.78/4,092.48 = 1,267.80/x
  3. Step 3: Cross multiply
    2,727.78x = 4,092.48 × 1,267.80
  4. Step 4: Simplify right side
    2,727.78x = 5,188,446.14
  5. Step 5: Solve for x
    x = 5,188,446.14/2,727.78
  6. Step 6: Final answer
    x = 1,902.08

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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.