Home / 3,429.20-5,148.60-2,133.20

Finding the Fourth Proportional to 3,429.20, 5,148.60 and 2,133.20

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Solution

The fourth proportional to 3,429.20, 5,148.60 and 2,133.20 is: 3,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.20 : 5,148.60 = 2,133.20 : x
  2. Step 2: Convert to fraction form
    3,429.20/5,148.60 = 2,133.20/x
  3. Step 3: Cross multiply
    3,429.20x = 5,148.60 × 2,133.20
  4. Step 4: Simplify right side
    3,429.20x = 10,982,993.52
  5. Step 5: Solve for x
    x = 10,982,993.52/3,429.20
  6. Step 6: Final answer
    x = 3,202.79

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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.