Home / 5,163.82-7,126.04-2,805.90

Finding the Fourth Proportional to 5,163.82, 7,126.04 and 2,805.90

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Solution

The fourth proportional to 5,163.82, 7,126.04 and 2,805.90 is: 3,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.82 : 7,126.04 = 2,805.90 : x
  2. Step 2: Convert to fraction form
    5,163.82/7,126.04 = 2,805.90/x
  3. Step 3: Cross multiply
    5,163.82x = 7,126.04 × 2,805.90
  4. Step 4: Simplify right side
    5,163.82x = 19,994,955.64
  5. Step 5: Solve for x
    x = 19,994,955.64/5,163.82
  6. Step 6: Final answer
    x = 3,872.12

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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.