Home / 5,422.91-8,131.28-2,134.22

Finding the Fourth Proportional to 5,422.91, 8,131.28 and 2,134.22

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Solution

The fourth proportional to 5,422.91, 8,131.28 and 2,134.22 is: 3,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.91 : 8,131.28 = 2,134.22 : x
  2. Step 2: Convert to fraction form
    5,422.91/8,131.28 = 2,134.22/x
  3. Step 3: Cross multiply
    5,422.91x = 8,131.28 × 2,134.22
  4. Step 4: Simplify right side
    5,422.91x = 17,353,889.07
  5. Step 5: Solve for x
    x = 17,353,889.07/5,422.91
  6. Step 6: Final answer
    x = 3,200.11

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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.