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Finding the Fourth Proportional to 2,008.88, 3,012.77 and 547.68

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Solution

The fourth proportional to 2,008.88, 3,012.77 and 547.68 is: 821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.88 : 3,012.77 = 547.68 : x
  2. Step 2: Convert to fraction form
    2,008.88/3,012.77 = 547.68/x
  3. Step 3: Cross multiply
    2,008.88x = 3,012.77 × 547.68
  4. Step 4: Simplify right side
    2,008.88x = 1,650,033.87
  5. Step 5: Solve for x
    x = 1,650,033.87/2,008.88
  6. Step 6: Final answer
    x = 821.37

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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.