Home / 7,739.28-11,612.57-3,843.18

Finding the Fourth Proportional to 7,739.28, 11,612.57 and 3,843.18

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Solution

The fourth proportional to 7,739.28, 11,612.57 and 3,843.18 is: 5,766.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.28 : 11,612.57 = 3,843.18 : x
  2. Step 2: Convert to fraction form
    7,739.28/11,612.57 = 3,843.18/x
  3. Step 3: Cross multiply
    7,739.28x = 11,612.57 × 3,843.18
  4. Step 4: Simplify right side
    7,739.28x = 44,629,177.56
  5. Step 5: Solve for x
    x = 44,629,177.56/7,739.28
  6. Step 6: Final answer
    x = 5,766.58

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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.