Home / 5,422.44-8,127.90-2,135.08

Finding the Fourth Proportional to 5,422.44, 8,127.90 and 2,135.08

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Solution

The fourth proportional to 5,422.44, 8,127.90 and 2,135.08 is: 3,200.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.44 : 8,127.90 = 2,135.08 : x
  2. Step 2: Convert to fraction form
    5,422.44/8,127.90 = 2,135.08/x
  3. Step 3: Cross multiply
    5,422.44x = 8,127.90 × 2,135.08
  4. Step 4: Simplify right side
    5,422.44x = 17,353,716.73
  5. Step 5: Solve for x
    x = 17,353,716.73/5,422.44
  6. Step 6: Final answer
    x = 3,200.35

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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.