Home / 2,015.57-3,022.11-628.52

Finding the Fourth Proportional to 2,015.57, 3,022.11 and 628.52

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Solution

The fourth proportional to 2,015.57, 3,022.11 and 628.52 is: 942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.57 : 3,022.11 = 628.52 : x
  2. Step 2: Convert to fraction form
    2,015.57/3,022.11 = 628.52/x
  3. Step 3: Cross multiply
    2,015.57x = 3,022.11 × 628.52
  4. Step 4: Simplify right side
    2,015.57x = 1,899,456.58
  5. Step 5: Solve for x
    x = 1,899,456.58/2,015.57
  6. Step 6: Final answer
    x = 942.39

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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.