Home / 5,150.20-7,720.62-2,682.12

Finding the Fourth Proportional to 5,150.20, 7,720.62 and 2,682.12

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Solution

The fourth proportional to 5,150.20, 7,720.62 and 2,682.12 is: 4,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.20 : 7,720.62 = 2,682.12 : x
  2. Step 2: Convert to fraction form
    5,150.20/7,720.62 = 2,682.12/x
  3. Step 3: Cross multiply
    5,150.20x = 7,720.62 × 2,682.12
  4. Step 4: Simplify right side
    5,150.20x = 20,707,629.31
  5. Step 5: Solve for x
    x = 20,707,629.31/5,150.20
  6. Step 6: Final answer
    x = 4,020.74

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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.