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Finding the Fourth Proportional to 2,005.49, 3,008.25 and 544.52

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Solution

The fourth proportional to 2,005.49, 3,008.25 and 544.52 is: 816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.49 : 3,008.25 = 544.52 : x
  2. Step 2: Convert to fraction form
    2,005.49/3,008.25 = 544.52/x
  3. Step 3: Cross multiply
    2,005.49x = 3,008.25 × 544.52
  4. Step 4: Simplify right side
    2,005.49x = 1,638,037.25
  5. Step 5: Solve for x
    x = 1,638,037.25/2,005.49
  6. Step 6: Final answer
    x = 816.78

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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.