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Finding the Fourth Proportional to 2,027.64, 3,040.10 and 640.52

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Solution

The fourth proportional to 2,027.64, 3,040.10 and 640.52 is: 960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.64 : 3,040.10 = 640.52 : x
  2. Step 2: Convert to fraction form
    2,027.64/3,040.10 = 640.52/x
  3. Step 3: Cross multiply
    2,027.64x = 3,040.10 × 640.52
  4. Step 4: Simplify right side
    2,027.64x = 1,947,244.85
  5. Step 5: Solve for x
    x = 1,947,244.85/2,027.64
  6. Step 6: Final answer
    x = 960.35

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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.