Home / 2,027.42-3,040.97-640.80

Finding the Fourth Proportional to 2,027.42, 3,040.97 and 640.80

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Solution

The fourth proportional to 2,027.42, 3,040.97 and 640.80 is: 961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.42 : 3,040.97 = 640.80 : x
  2. Step 2: Convert to fraction form
    2,027.42/3,040.97 = 640.80/x
  3. Step 3: Cross multiply
    2,027.42x = 3,040.97 × 640.80
  4. Step 4: Simplify right side
    2,027.42x = 1,948,635.17
  5. Step 5: Solve for x
    x = 1,948,635.17/2,027.42
  6. Step 6: Final answer
    x = 961.14

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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.