Home / 5,163.87-7,126.05-2,806.02

Finding the Fourth Proportional to 5,163.87, 7,126.05 and 2,806.02

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Solution

The fourth proportional to 5,163.87, 7,126.05 and 2,806.02 is: 3,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.87 : 7,126.05 = 2,806.02 : x
  2. Step 2: Convert to fraction form
    5,163.87/7,126.05 = 2,806.02/x
  3. Step 3: Cross multiply
    5,163.87x = 7,126.05 × 2,806.02
  4. Step 4: Simplify right side
    5,163.87x = 19,995,838.82
  5. Step 5: Solve for x
    x = 19,995,838.82/5,163.87
  6. Step 6: Final answer
    x = 3,872.26

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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.