Home / 5,181.66-7,150.68-2,823.80

Finding the Fourth Proportional to 5,181.66, 7,150.68 and 2,823.80

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Solution

The fourth proportional to 5,181.66, 7,150.68 and 2,823.80 is: 3,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.66 : 7,150.68 = 2,823.80 : x
  2. Step 2: Convert to fraction form
    5,181.66/7,150.68 = 2,823.80/x
  3. Step 3: Cross multiply
    5,181.66x = 7,150.68 × 2,823.80
  4. Step 4: Simplify right side
    5,181.66x = 20,192,054.43
  5. Step 5: Solve for x
    x = 20,192,054.43/5,181.66
  6. Step 6: Final answer
    x = 3,896.83

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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.