Home / 2,629.78-3,944.70-1,244.20

Finding the Fourth Proportional to 2,629.78, 3,944.70 and 1,244.20

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Solution

The fourth proportional to 2,629.78, 3,944.70 and 1,244.20 is: 1,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.78 : 3,944.70 = 1,244.20 : x
  2. Step 2: Convert to fraction form
    2,629.78/3,944.70 = 1,244.20/x
  3. Step 3: Cross multiply
    2,629.78x = 3,944.70 × 1,244.20
  4. Step 4: Simplify right side
    2,629.78x = 4,907,995.74
  5. Step 5: Solve for x
    x = 4,907,995.74/2,629.78
  6. Step 6: Final answer
    x = 1,866.31

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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.