Home / 5,422.62-8,134.53-2,135.28

Finding the Fourth Proportional to 5,422.62, 8,134.53 and 2,135.28

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Solution

The fourth proportional to 5,422.62, 8,134.53 and 2,135.28 is: 3,203.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.62 : 8,134.53 = 2,135.28 : x
  2. Step 2: Convert to fraction form
    5,422.62/8,134.53 = 2,135.28/x
  3. Step 3: Cross multiply
    5,422.62x = 8,134.53 × 2,135.28
  4. Step 4: Simplify right side
    5,422.62x = 17,369,499.22
  5. Step 5: Solve for x
    x = 17,369,499.22/5,422.62
  6. Step 6: Final answer
    x = 3,203.16

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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.