Home / 2,015.25-3,023.22-628.47

Finding the Fourth Proportional to 2,015.25, 3,023.22 and 628.47

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Solution

The fourth proportional to 2,015.25, 3,023.22 and 628.47 is: 942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.25 : 3,023.22 = 628.47 : x
  2. Step 2: Convert to fraction form
    2,015.25/3,023.22 = 628.47/x
  3. Step 3: Cross multiply
    2,015.25x = 3,023.22 × 628.47
  4. Step 4: Simplify right side
    2,015.25x = 1,900,003.07
  5. Step 5: Solve for x
    x = 1,900,003.07/2,015.25
  6. Step 6: Final answer
    x = 942.81

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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.