Home / 2,716.97-3,749.72-1,538.12

Finding the Fourth Proportional to 2,716.97, 3,749.72 and 1,538.12

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Solution

The fourth proportional to 2,716.97, 3,749.72 and 1,538.12 is: 2,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.97 : 3,749.72 = 1,538.12 : x
  2. Step 2: Convert to fraction form
    2,716.97/3,749.72 = 1,538.12/x
  3. Step 3: Cross multiply
    2,716.97x = 3,749.72 × 1,538.12
  4. Step 4: Simplify right side
    2,716.97x = 5,767,519.33
  5. Step 5: Solve for x
    x = 5,767,519.33/2,716.97
  6. Step 6: Final answer
    x = 2,122.78

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1.5x scale

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.