Home / 7,731.20-11,593.74-2,799.38

Finding the Fourth Proportional to 7,731.20, 11,593.74 and 2,799.38

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Solution

The fourth proportional to 7,731.20, 11,593.74 and 2,799.38 is: 4,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.20 : 11,593.74 = 2,799.38 : x
  2. Step 2: Convert to fraction form
    7,731.20/11,593.74 = 2,799.38/x
  3. Step 3: Cross multiply
    7,731.20x = 11,593.74 × 2,799.38
  4. Step 4: Simplify right side
    7,731.20x = 32,455,283.88
  5. Step 5: Solve for x
    x = 32,455,283.88/7,731.20
  6. Step 6: Final answer
    x = 4,197.96

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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.