Home / 2,231.67-3,079.71-1,236.99

Finding the Fourth Proportional to 2,231.67, 3,079.71 and 1,236.99

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Solution

The fourth proportional to 2,231.67, 3,079.71 and 1,236.99 is: 1,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.67 : 3,079.71 = 1,236.99 : x
  2. Step 2: Convert to fraction form
    2,231.67/3,079.71 = 1,236.99/x
  3. Step 3: Cross multiply
    2,231.67x = 3,079.71 × 1,236.99
  4. Step 4: Simplify right side
    2,231.67x = 3,809,570.47
  5. Step 5: Solve for x
    x = 3,809,570.47/2,231.67
  6. Step 6: Final answer
    x = 1,707.05

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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.