Home / 2,232.81-3,081.48-1,238.43

Finding the Fourth Proportional to 2,232.81, 3,081.48 and 1,238.43

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Solution

The fourth proportional to 2,232.81, 3,081.48 and 1,238.43 is: 1,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.81 : 3,081.48 = 1,238.43 : x
  2. Step 2: Convert to fraction form
    2,232.81/3,081.48 = 1,238.43/x
  3. Step 3: Cross multiply
    2,232.81x = 3,081.48 × 1,238.43
  4. Step 4: Simplify right side
    2,232.81x = 3,816,197.28
  5. Step 5: Solve for x
    x = 3,816,197.28/2,232.81
  6. Step 6: Final answer
    x = 1,709.15

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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.