Home / 2,101.23-3,150.92-801.79

Finding the Fourth Proportional to 2,101.23, 3,150.92 and 801.79

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Solution

The fourth proportional to 2,101.23, 3,150.92 and 801.79 is: 1,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.23 : 3,150.92 = 801.79 : x
  2. Step 2: Convert to fraction form
    2,101.23/3,150.92 = 801.79/x
  3. Step 3: Cross multiply
    2,101.23x = 3,150.92 × 801.79
  4. Step 4: Simplify right side
    2,101.23x = 2,526,376.15
  5. Step 5: Solve for x
    x = 2,526,376.15/2,101.23
  6. Step 6: Final answer
    x = 1,202.33

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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.