Home / 6,078.81-9,120.96-3,481.75

Finding the Fourth Proportional to 6,078.81, 9,120.96 and 3,481.75

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Solution

The fourth proportional to 6,078.81, 9,120.96 and 3,481.75 is: 5,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.81 : 9,120.96 = 3,481.75 : x
  2. Step 2: Convert to fraction form
    6,078.81/9,120.96 = 3,481.75/x
  3. Step 3: Cross multiply
    6,078.81x = 9,120.96 × 3,481.75
  4. Step 4: Simplify right side
    6,078.81x = 31,756,902.48
  5. Step 5: Solve for x
    x = 31,756,902.48/6,078.81
  6. Step 6: Final answer
    x = 5,224.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.