Home / 2,122.29-3,183.05-889.37

Finding the Fourth Proportional to 2,122.29, 3,183.05 and 889.37

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Solution

The fourth proportional to 2,122.29, 3,183.05 and 889.37 is: 1,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.29 : 3,183.05 = 889.37 : x
  2. Step 2: Convert to fraction form
    2,122.29/3,183.05 = 889.37/x
  3. Step 3: Cross multiply
    2,122.29x = 3,183.05 × 889.37
  4. Step 4: Simplify right side
    2,122.29x = 2,830,888.82
  5. Step 5: Solve for x
    x = 2,830,888.82/2,122.29
  6. Step 6: Final answer
    x = 1,333.88

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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.