Home / 2,811.62-4,218.03-1,349.97

Finding the Fourth Proportional to 2,811.62, 4,218.03 and 1,349.97

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Solution

The fourth proportional to 2,811.62, 4,218.03 and 1,349.97 is: 2,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.62 : 4,218.03 = 1,349.97 : x
  2. Step 2: Convert to fraction form
    2,811.62/4,218.03 = 1,349.97/x
  3. Step 3: Cross multiply
    2,811.62x = 4,218.03 × 1,349.97
  4. Step 4: Simplify right side
    2,811.62x = 5,694,213.96
  5. Step 5: Solve for x
    x = 5,694,213.96/2,811.62
  6. Step 6: Final answer
    x = 2,025.25

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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.