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Finding the Fourth Proportional to 2,005.54, 3,008.31 and 544.69

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Solution

The fourth proportional to 2,005.54, 3,008.31 and 544.69 is: 817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.54 : 3,008.31 = 544.69 : x
  2. Step 2: Convert to fraction form
    2,005.54/3,008.31 = 544.69/x
  3. Step 3: Cross multiply
    2,005.54x = 3,008.31 × 544.69
  4. Step 4: Simplify right side
    2,005.54x = 1,638,598.09
  5. Step 5: Solve for x
    x = 1,638,598.09/2,005.54
  6. Step 6: Final answer
    x = 817.03

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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.