Home / 5,199.80-7,175.79-2,961.77

Finding the Fourth Proportional to 5,199.80, 7,175.79 and 2,961.77

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Solution

The fourth proportional to 5,199.80, 7,175.79 and 2,961.77 is: 4,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.80 : 7,175.79 = 2,961.77 : x
  2. Step 2: Convert to fraction form
    5,199.80/7,175.79 = 2,961.77/x
  3. Step 3: Cross multiply
    5,199.80x = 7,175.79 × 2,961.77
  4. Step 4: Simplify right side
    5,199.80x = 21,253,003.67
  5. Step 5: Solve for x
    x = 21,253,003.67/5,199.80
  6. Step 6: Final answer
    x = 4,087.28

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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.