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Finding the Fourth Proportional to 6,540.69, 9,811.03 and 2,645.10

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Solution

The fourth proportional to 6,540.69, 9,811.03 and 2,645.10 is: 3,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.69 : 9,811.03 = 2,645.10 : x
  2. Step 2: Convert to fraction form
    6,540.69/9,811.03 = 2,645.10/x
  3. Step 3: Cross multiply
    6,540.69x = 9,811.03 × 2,645.10
  4. Step 4: Simplify right side
    6,540.69x = 25,951,155.45
  5. Step 5: Solve for x
    x = 25,951,155.45/6,540.69
  6. Step 6: Final answer
    x = 3,967.65

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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.