Home / 2,629.57-3,629.05-1,965.27

Finding the Fourth Proportional to 2,629.57, 3,629.05 and 1,965.27

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Solution

The fourth proportional to 2,629.57, 3,629.05 and 1,965.27 is: 2,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.57 : 3,629.05 = 1,965.27 : x
  2. Step 2: Convert to fraction form
    2,629.57/3,629.05 = 1,965.27/x
  3. Step 3: Cross multiply
    2,629.57x = 3,629.05 × 1,965.27
  4. Step 4: Simplify right side
    2,629.57x = 7,132,063.09
  5. Step 5: Solve for x
    x = 7,132,063.09/2,629.57
  6. Step 6: Final answer
    x = 2,712.25

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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.