Home / 3,422.62-5,133.93-2,190.61

Finding the Fourth Proportional to 3,422.62, 5,133.93 and 2,190.61

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Solution

The fourth proportional to 3,422.62, 5,133.93 and 2,190.61 is: 3,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.62 : 5,133.93 = 2,190.61 : x
  2. Step 2: Convert to fraction form
    3,422.62/5,133.93 = 2,190.61/x
  3. Step 3: Cross multiply
    3,422.62x = 5,133.93 × 2,190.61
  4. Step 4: Simplify right side
    3,422.62x = 11,246,438.40
  5. Step 5: Solve for x
    x = 11,246,438.40/3,422.62
  6. Step 6: Final answer
    x = 3,285.92

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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.