Home / 5,422.25-8,134.19-1,960.31

Finding the Fourth Proportional to 5,422.25, 8,134.19 and 1,960.31

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Solution

The fourth proportional to 5,422.25, 8,134.19 and 1,960.31 is: 2,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.25 : 8,134.19 = 1,960.31 : x
  2. Step 2: Convert to fraction form
    5,422.25/8,134.19 = 1,960.31/x
  3. Step 3: Cross multiply
    5,422.25x = 8,134.19 × 1,960.31
  4. Step 4: Simplify right side
    5,422.25x = 15,945,534.00
  5. Step 5: Solve for x
    x = 15,945,534.00/5,422.25
  6. Step 6: Final answer
    x = 2,940.76

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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.