Home / 2,027.25-3,041.46-640.78

Finding the Fourth Proportional to 2,027.25, 3,041.46 and 640.78

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Solution

The fourth proportional to 2,027.25, 3,041.46 and 640.78 is: 961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.25 : 3,041.46 = 640.78 : x
  2. Step 2: Convert to fraction form
    2,027.25/3,041.46 = 640.78/x
  3. Step 3: Cross multiply
    2,027.25x = 3,041.46 × 640.78
  4. Step 4: Simplify right side
    2,027.25x = 1,948,906.74
  5. Step 5: Solve for x
    x = 1,948,906.74/2,027.25
  6. Step 6: Final answer
    x = 961.35

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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.