Home / 2,015.39-3,023.37-628.85

Finding the Fourth Proportional to 2,015.39, 3,023.37 and 628.85

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Solution

The fourth proportional to 2,015.39, 3,023.37 and 628.85 is: 943.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.39 : 3,023.37 = 628.85 : x
  2. Step 2: Convert to fraction form
    2,015.39/3,023.37 = 628.85/x
  3. Step 3: Cross multiply
    2,015.39x = 3,023.37 × 628.85
  4. Step 4: Simplify right side
    2,015.39x = 1,901,246.22
  5. Step 5: Solve for x
    x = 1,901,246.22/2,015.39
  6. Step 6: Final answer
    x = 943.36

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1.5x scale

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.