Home / 2,027.21-3,040.95-640.61

Finding the Fourth Proportional to 2,027.21, 3,040.95 and 640.61

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Solution

The fourth proportional to 2,027.21, 3,040.95 and 640.61 is: 960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.21 : 3,040.95 = 640.61 : x
  2. Step 2: Convert to fraction form
    2,027.21/3,040.95 = 640.61/x
  3. Step 3: Cross multiply
    2,027.21x = 3,040.95 × 640.61
  4. Step 4: Simplify right side
    2,027.21x = 1,948,062.98
  5. Step 5: Solve for x
    x = 1,948,062.98/2,027.21
  6. Step 6: Final answer
    x = 960.96

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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.