Home / 5,179.45-7,147.60-3,162.85

Finding the Fourth Proportional to 5,179.45, 7,147.60 and 3,162.85

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Solution

The fourth proportional to 5,179.45, 7,147.60 and 3,162.85 is: 4,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.45 : 7,147.60 = 3,162.85 : x
  2. Step 2: Convert to fraction form
    5,179.45/7,147.60 = 3,162.85/x
  3. Step 3: Cross multiply
    5,179.45x = 7,147.60 × 3,162.85
  4. Step 4: Simplify right side
    5,179.45x = 22,606,786.66
  5. Step 5: Solve for x
    x = 22,606,786.66/5,179.45
  6. Step 6: Final answer
    x = 4,364.71

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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.