Home / 2,282.72-3,419.44-1,821.28

Finding the Fourth Proportional to 2,282.72, 3,419.44 and 1,821.28

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Solution

The fourth proportional to 2,282.72, 3,419.44 and 1,821.28 is: 2,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.72 : 3,419.44 = 1,821.28 : x
  2. Step 2: Convert to fraction form
    2,282.72/3,419.44 = 1,821.28/x
  3. Step 3: Cross multiply
    2,282.72x = 3,419.44 × 1,821.28
  4. Step 4: Simplify right side
    2,282.72x = 6,227,757.68
  5. Step 5: Solve for x
    x = 6,227,757.68/2,282.72
  6. Step 6: Final answer
    x = 2,728.22

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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.