Home / 2,629.54-3,629.02-1,965.24

Finding the Fourth Proportional to 2,629.54, 3,629.02 and 1,965.24

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Solution

The fourth proportional to 2,629.54, 3,629.02 and 1,965.24 is: 2,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.54 : 3,629.02 = 1,965.24 : x
  2. Step 2: Convert to fraction form
    2,629.54/3,629.02 = 1,965.24/x
  3. Step 3: Cross multiply
    2,629.54x = 3,629.02 × 1,965.24
  4. Step 4: Simplify right side
    2,629.54x = 7,131,895.26
  5. Step 5: Solve for x
    x = 7,131,895.26/2,629.54
  6. Step 6: Final answer
    x = 2,712.22

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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.