Home / 2,629.09-3,629.29-1,745.65

Finding the Fourth Proportional to 2,629.09, 3,629.29 and 1,745.65

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Solution

The fourth proportional to 2,629.09, 3,629.29 and 1,745.65 is: 2,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.09 : 3,629.29 = 1,745.65 : x
  2. Step 2: Convert to fraction form
    2,629.09/3,629.29 = 1,745.65/x
  3. Step 3: Cross multiply
    2,629.09x = 3,629.29 × 1,745.65
  4. Step 4: Simplify right side
    2,629.09x = 6,335,451.94
  5. Step 5: Solve for x
    x = 6,335,451.94/2,629.09
  6. Step 6: Final answer
    x = 2,409.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.