Home / 6,975.20-9,626.16-3,991.16

Finding the Fourth Proportional to 6,975.20, 9,626.16 and 3,991.16

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Solution

The fourth proportional to 6,975.20, 9,626.16 and 3,991.16 is: 5,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.20 : 9,626.16 = 3,991.16 : x
  2. Step 2: Convert to fraction form
    6,975.20/9,626.16 = 3,991.16/x
  3. Step 3: Cross multiply
    6,975.20x = 9,626.16 × 3,991.16
  4. Step 4: Simplify right side
    6,975.20x = 38,419,544.75
  5. Step 5: Solve for x
    x = 38,419,544.75/6,975.20
  6. Step 6: Final answer
    x = 5,508.02

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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.