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Finding the Fourth Proportional to 2,005.58, 3,008.07 and 544.86

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Solution

The fourth proportional to 2,005.58, 3,008.07 and 544.86 is: 817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.58 : 3,008.07 = 544.86 : x
  2. Step 2: Convert to fraction form
    2,005.58/3,008.07 = 544.86/x
  3. Step 3: Cross multiply
    2,005.58x = 3,008.07 × 544.86
  4. Step 4: Simplify right side
    2,005.58x = 1,638,977.02
  5. Step 5: Solve for x
    x = 1,638,977.02/2,005.58
  6. Step 6: Final answer
    x = 817.21

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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.