Home / 2,286.33-3,155.13-1,238.39

Finding the Fourth Proportional to 2,286.33, 3,155.13 and 1,238.39

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Solution

The fourth proportional to 2,286.33, 3,155.13 and 1,238.39 is: 1,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.33 : 3,155.13 = 1,238.39 : x
  2. Step 2: Convert to fraction form
    2,286.33/3,155.13 = 1,238.39/x
  3. Step 3: Cross multiply
    2,286.33x = 3,155.13 × 1,238.39
  4. Step 4: Simplify right side
    2,286.33x = 3,907,289.33
  5. Step 5: Solve for x
    x = 3,907,289.33/2,286.33
  6. Step 6: Final answer
    x = 1,708.98

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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.