Home / 6,976.96-9,628.41-3,993.75

Finding the Fourth Proportional to 6,976.96, 9,628.41 and 3,993.75

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Solution

The fourth proportional to 6,976.96, 9,628.41 and 3,993.75 is: 5,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.96 : 9,628.41 = 3,993.75 : x
  2. Step 2: Convert to fraction form
    6,976.96/9,628.41 = 3,993.75/x
  3. Step 3: Cross multiply
    6,976.96x = 9,628.41 × 3,993.75
  4. Step 4: Simplify right side
    6,976.96x = 38,453,462.44
  5. Step 5: Solve for x
    x = 38,453,462.44/6,976.96
  6. Step 6: Final answer
    x = 5,511.49

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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.