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Finding the Fourth Proportional to 6,649.04, 9,979.71 and 3,364.44

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Solution

The fourth proportional to 6,649.04, 9,979.71 and 3,364.44 is: 5,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.04 : 9,979.71 = 3,364.44 : x
  2. Step 2: Convert to fraction form
    6,649.04/9,979.71 = 3,364.44/x
  3. Step 3: Cross multiply
    6,649.04x = 9,979.71 × 3,364.44
  4. Step 4: Simplify right side
    6,649.04x = 33,576,135.51
  5. Step 5: Solve for x
    x = 33,576,135.51/6,649.04
  6. Step 6: Final answer
    x = 5,049.78

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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.