Home / 5,163.95-7,126.33-2,806.09

Finding the Fourth Proportional to 5,163.95, 7,126.33 and 2,806.09

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Solution

The fourth proportional to 5,163.95, 7,126.33 and 2,806.09 is: 3,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.95 : 7,126.33 = 2,806.09 : x
  2. Step 2: Convert to fraction form
    5,163.95/7,126.33 = 2,806.09/x
  3. Step 3: Cross multiply
    5,163.95x = 7,126.33 × 2,806.09
  4. Step 4: Simplify right side
    5,163.95x = 19,997,143.87
  5. Step 5: Solve for x
    x = 19,997,143.87/5,163.95
  6. Step 6: Final answer
    x = 3,872.45

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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.