Home / 2,722.21-4,083.31-1,902.08

Finding the Fourth Proportional to 2,722.21, 4,083.31 and 1,902.08

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Solution

The fourth proportional to 2,722.21, 4,083.31 and 1,902.08 is: 2,853.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.21 : 4,083.31 = 1,902.08 : x
  2. Step 2: Convert to fraction form
    2,722.21/4,083.31 = 1,902.08/x
  3. Step 3: Cross multiply
    2,722.21x = 4,083.31 × 1,902.08
  4. Step 4: Simplify right side
    2,722.21x = 7,766,794.87
  5. Step 5: Solve for x
    x = 7,766,794.87/2,722.21
  6. Step 6: Final answer
    x = 2,853.12

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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.