Home / 6,608.25-9,120.20-3,813.75

Finding the Fourth Proportional to 6,608.25, 9,120.20 and 3,813.75

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Solution

The fourth proportional to 6,608.25, 9,120.20 and 3,813.75 is: 5,263.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.25 : 9,120.20 = 3,813.75 : x
  2. Step 2: Convert to fraction form
    6,608.25/9,120.20 = 3,813.75/x
  3. Step 3: Cross multiply
    6,608.25x = 9,120.20 × 3,813.75
  4. Step 4: Simplify right side
    6,608.25x = 34,782,143.68
  5. Step 5: Solve for x
    x = 34,782,143.68/6,608.25
  6. Step 6: Final answer
    x = 5,263.44

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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.