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Finding the Fourth Proportional to 6,643.22, 9,167.65 and 3,659.05

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Solution

The fourth proportional to 6,643.22, 9,167.65 and 3,659.05 is: 5,049.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.22 : 9,167.65 = 3,659.05 : x
  2. Step 2: Convert to fraction form
    6,643.22/9,167.65 = 3,659.05/x
  3. Step 3: Cross multiply
    6,643.22x = 9,167.65 × 3,659.05
  4. Step 4: Simplify right side
    6,643.22x = 33,544,857.67
  5. Step 5: Solve for x
    x = 33,544,857.67/6,643.22
  6. Step 6: Final answer
    x = 5,049.49

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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.