Home / 2,134.80-3,202.20-2,121.14

Finding the Fourth Proportional to 2,134.80, 3,202.20 and 2,121.14

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Solution

The fourth proportional to 2,134.80, 3,202.20 and 2,121.14 is: 3,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.80 : 3,202.20 = 2,121.14 : x
  2. Step 2: Convert to fraction form
    2,134.80/3,202.20 = 2,121.14/x
  3. Step 3: Cross multiply
    2,134.80x = 3,202.20 × 2,121.14
  4. Step 4: Simplify right side
    2,134.80x = 6,792,322.51
  5. Step 5: Solve for x
    x = 6,792,322.51/2,134.80
  6. Step 6: Final answer
    x = 3,181.71

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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.