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Finding the Fourth Proportional to 6,646.88, 9,973.97 and 2,489.76

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Solution

The fourth proportional to 6,646.88, 9,973.97 and 2,489.76 is: 3,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.88 : 9,973.97 = 2,489.76 : x
  2. Step 2: Convert to fraction form
    6,646.88/9,973.97 = 2,489.76/x
  3. Step 3: Cross multiply
    6,646.88x = 9,973.97 × 2,489.76
  4. Step 4: Simplify right side
    6,646.88x = 24,832,788.44
  5. Step 5: Solve for x
    x = 24,832,788.44/6,646.88
  6. Step 6: Final answer
    x = 3,736.01

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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.