Home / 7,727.75-11,591.42-2,181.47

Finding the Fourth Proportional to 7,727.75, 11,591.42 and 2,181.47

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Solution

The fourth proportional to 7,727.75, 11,591.42 and 2,181.47 is: 3,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.75 : 11,591.42 = 2,181.47 : x
  2. Step 2: Convert to fraction form
    7,727.75/11,591.42 = 2,181.47/x
  3. Step 3: Cross multiply
    7,727.75x = 11,591.42 × 2,181.47
  4. Step 4: Simplify right side
    7,727.75x = 25,286,353.06
  5. Step 5: Solve for x
    x = 25,286,353.06/7,727.75
  6. Step 6: Final answer
    x = 3,272.15

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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.