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Finding the Fourth Proportional to 1,883.22, 2,819.34 and 1,398.42

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Solution

The fourth proportional to 1,883.22, 2,819.34 and 1,398.42 is: 2,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.22 : 2,819.34 = 1,398.42 : x
  2. Step 2: Convert to fraction form
    1,883.22/2,819.34 = 1,398.42/x
  3. Step 3: Cross multiply
    1,883.22x = 2,819.34 × 1,398.42
  4. Step 4: Simplify right side
    1,883.22x = 3,942,621.44
  5. Step 5: Solve for x
    x = 3,942,621.44/1,883.22
  6. Step 6: Final answer
    x = 2,093.55

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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.