Home / 2,629.49-3,945.45-1,809.37

Finding the Fourth Proportional to 2,629.49, 3,945.45 and 1,809.37

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Solution

The fourth proportional to 2,629.49, 3,945.45 and 1,809.37 is: 2,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.49 : 3,945.45 = 1,809.37 : x
  2. Step 2: Convert to fraction form
    2,629.49/3,945.45 = 1,809.37/x
  3. Step 3: Cross multiply
    2,629.49x = 3,945.45 × 1,809.37
  4. Step 4: Simplify right side
    2,629.49x = 7,138,759.14
  5. Step 5: Solve for x
    x = 7,138,759.14/2,629.49
  6. Step 6: Final answer
    x = 2,714.88

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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.