Home / 6,891.72-10,338.66-2,729.64

Finding the Fourth Proportional to 6,891.72, 10,338.66 and 2,729.64

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Solution

The fourth proportional to 6,891.72, 10,338.66 and 2,729.64 is: 4,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.72 : 10,338.66 = 2,729.64 : x
  2. Step 2: Convert to fraction form
    6,891.72/10,338.66 = 2,729.64/x
  3. Step 3: Cross multiply
    6,891.72x = 10,338.66 × 2,729.64
  4. Step 4: Simplify right side
    6,891.72x = 28,220,819.88
  5. Step 5: Solve for x
    x = 28,220,819.88/6,891.72
  6. Step 6: Final answer
    x = 4,094.89

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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.