Home / 2,232.87-3,081.27-1,238.12

Finding the Fourth Proportional to 2,232.87, 3,081.27 and 1,238.12

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Solution

The fourth proportional to 2,232.87, 3,081.27 and 1,238.12 is: 1,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.87 : 3,081.27 = 1,238.12 : x
  2. Step 2: Convert to fraction form
    2,232.87/3,081.27 = 1,238.12/x
  3. Step 3: Cross multiply
    2,232.87x = 3,081.27 × 1,238.12
  4. Step 4: Simplify right side
    2,232.87x = 3,814,982.01
  5. Step 5: Solve for x
    x = 3,814,982.01/2,232.87
  6. Step 6: Final answer
    x = 1,708.56

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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.