Home / 2,138.25-3,208.14-968.52

Finding the Fourth Proportional to 2,138.25, 3,208.14 and 968.52

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Solution

The fourth proportional to 2,138.25, 3,208.14 and 968.52 is: 1,453.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.25 : 3,208.14 = 968.52 : x
  2. Step 2: Convert to fraction form
    2,138.25/3,208.14 = 968.52/x
  3. Step 3: Cross multiply
    2,138.25x = 3,208.14 × 968.52
  4. Step 4: Simplify right side
    2,138.25x = 3,107,147.75
  5. Step 5: Solve for x
    x = 3,107,147.75/2,138.25
  6. Step 6: Final answer
    x = 1,453.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.