Home / 2,027.18-3,040.33-640.62

Finding the Fourth Proportional to 2,027.18, 3,040.33 and 640.62

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Solution

The fourth proportional to 2,027.18, 3,040.33 and 640.62 is: 960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.18 : 3,040.33 = 640.62 : x
  2. Step 2: Convert to fraction form
    2,027.18/3,040.33 = 640.62/x
  3. Step 3: Cross multiply
    2,027.18x = 3,040.33 × 640.62
  4. Step 4: Simplify right side
    2,027.18x = 1,947,696.20
  5. Step 5: Solve for x
    x = 1,947,696.20/2,027.18
  6. Step 6: Final answer
    x = 960.79

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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.