Home / 1,629.33-2,443.39-518.64

Finding the Fourth Proportional to 1,629.33, 2,443.39 and 518.64

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Solution

The fourth proportional to 1,629.33, 2,443.39 and 518.64 is: 777.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.33 : 2,443.39 = 518.64 : x
  2. Step 2: Convert to fraction form
    1,629.33/2,443.39 = 518.64/x
  3. Step 3: Cross multiply
    1,629.33x = 2,443.39 × 518.64
  4. Step 4: Simplify right side
    1,629.33x = 1,267,238.49
  5. Step 5: Solve for x
    x = 1,267,238.49/1,629.33
  6. Step 6: Final answer
    x = 777.77

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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.