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Finding the Fourth Proportional to 2,027.48, 3,041.28 and 640.82

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Solution

The fourth proportional to 2,027.48, 3,041.28 and 640.82 is: 961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.48 : 3,041.28 = 640.82 : x
  2. Step 2: Convert to fraction form
    2,027.48/3,041.28 = 640.82/x
  3. Step 3: Cross multiply
    2,027.48x = 3,041.28 × 640.82
  4. Step 4: Simplify right side
    2,027.48x = 1,948,913.05
  5. Step 5: Solve for x
    x = 1,948,913.05/2,027.48
  6. Step 6: Final answer
    x = 961.25

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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.