Home / 2,138.33-2,944.31-1,608

Finding the Fourth Proportional to 2,138.33, 2,944.31 and 1,608

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Solution

The fourth proportional to 2,138.33, 2,944.31 and 1,608 is: 2,214.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.33 : 2,944.31 = 1,608 : x
  2. Step 2: Convert to fraction form
    2,138.33/2,944.31 = 1,608/x
  3. Step 3: Cross multiply
    2,138.33x = 2,944.31 × 1,608
  4. Step 4: Simplify right side
    2,138.33x = 4,734,442.44
  5. Step 5: Solve for x
    x = 4,734,442.44/2,138.33
  6. Step 6: Final answer
    x = 2,214.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.