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Finding the Fourth Proportional to 2,208.76, 3,043.27 and 1,649

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Solution

The fourth proportional to 2,208.76, 3,043.27 and 1,649 is: 2,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.76 : 3,043.27 = 1,649 : x
  2. Step 2: Convert to fraction form
    2,208.76/3,043.27 = 1,649/x
  3. Step 3: Cross multiply
    2,208.76x = 3,043.27 × 1,649
  4. Step 4: Simplify right side
    2,208.76x = 5,018,352.23
  5. Step 5: Solve for x
    x = 5,018,352.23/2,208.76
  6. Step 6: Final answer
    x = 2,272.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.