Home / 2,015.43-3,023.37-628.53

Finding the Fourth Proportional to 2,015.43, 3,023.37 and 628.53

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Solution

The fourth proportional to 2,015.43, 3,023.37 and 628.53 is: 942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.43 : 3,023.37 = 628.53 : x
  2. Step 2: Convert to fraction form
    2,015.43/3,023.37 = 628.53/x
  3. Step 3: Cross multiply
    2,015.43x = 3,023.37 × 628.53
  4. Step 4: Simplify right side
    2,015.43x = 1,900,278.75
  5. Step 5: Solve for x
    x = 1,900,278.75/2,015.43
  6. Step 6: Final answer
    x = 942.87

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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.