Home / 2,538.36-3,480.57-2,288.68

Finding the Fourth Proportional to 2,538.36, 3,480.57 and 2,288.68

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Solution

The fourth proportional to 2,538.36, 3,480.57 and 2,288.68 is: 3,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.36 : 3,480.57 = 2,288.68 : x
  2. Step 2: Convert to fraction form
    2,538.36/3,480.57 = 2,288.68/x
  3. Step 3: Cross multiply
    2,538.36x = 3,480.57 × 2,288.68
  4. Step 4: Simplify right side
    2,538.36x = 7,965,910.95
  5. Step 5: Solve for x
    x = 7,965,910.95/2,538.36
  6. Step 6: Final answer
    x = 3,138.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.