Home / 5,199.21-7,175.72-2,961.79

Finding the Fourth Proportional to 5,199.21, 7,175.72 and 2,961.79

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Solution

The fourth proportional to 5,199.21, 7,175.72 and 2,961.79 is: 4,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.21 : 7,175.72 = 2,961.79 : x
  2. Step 2: Convert to fraction form
    5,199.21/7,175.72 = 2,961.79/x
  3. Step 3: Cross multiply
    5,199.21x = 7,175.72 × 2,961.79
  4. Step 4: Simplify right side
    5,199.21x = 21,252,975.74
  5. Step 5: Solve for x
    x = 21,252,975.74/5,199.21
  6. Step 6: Final answer
    x = 4,087.73

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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.