Home / 2,286.42-3,155.26-1,238.48

Finding the Fourth Proportional to 2,286.42, 3,155.26 and 1,238.48

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Solution

The fourth proportional to 2,286.42, 3,155.26 and 1,238.48 is: 1,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.42 : 3,155.26 = 1,238.48 : x
  2. Step 2: Convert to fraction form
    2,286.42/3,155.26 = 1,238.48/x
  3. Step 3: Cross multiply
    2,286.42x = 3,155.26 × 1,238.48
  4. Step 4: Simplify right side
    2,286.42x = 3,907,719.36
  5. Step 5: Solve for x
    x = 3,907,719.36/2,286.42
  6. Step 6: Final answer
    x = 1,709.10

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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.