Home / 5,163.98-7,126.28-2,806.16

Finding the Fourth Proportional to 5,163.98, 7,126.28 and 2,806.16

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Solution

The fourth proportional to 5,163.98, 7,126.28 and 2,806.16 is: 3,872.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.98 : 7,126.28 = 2,806.16 : x
  2. Step 2: Convert to fraction form
    5,163.98/7,126.28 = 2,806.16/x
  3. Step 3: Cross multiply
    5,163.98x = 7,126.28 × 2,806.16
  4. Step 4: Simplify right side
    5,163.98x = 19,997,481.88
  5. Step 5: Solve for x
    x = 19,997,481.88/5,163.98
  6. Step 6: Final answer
    x = 3,872.49

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1.5x scale

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.