Home / 5,149.89-7,108.79-3,163.14

Finding the Fourth Proportional to 5,149.89, 7,108.79 and 3,163.14

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Solution

The fourth proportional to 5,149.89, 7,108.79 and 3,163.14 is: 4,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.89 : 7,108.79 = 3,163.14 : x
  2. Step 2: Convert to fraction form
    5,149.89/7,108.79 = 3,163.14/x
  3. Step 3: Cross multiply
    5,149.89x = 7,108.79 × 3,163.14
  4. Step 4: Simplify right side
    5,149.89x = 22,486,082.18
  5. Step 5: Solve for x
    x = 22,486,082.18/5,149.89
  6. Step 6: Final answer
    x = 4,366.32

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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.