Home / 2,231.66-3,079.70-1,447.08

Finding the Fourth Proportional to 2,231.66, 3,079.70 and 1,447.08

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Solution

The fourth proportional to 2,231.66, 3,079.70 and 1,447.08 is: 1,996.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.66 : 3,079.70 = 1,447.08 : x
  2. Step 2: Convert to fraction form
    2,231.66/3,079.70 = 1,447.08/x
  3. Step 3: Cross multiply
    2,231.66x = 3,079.70 × 1,447.08
  4. Step 4: Simplify right side
    2,231.66x = 4,456,572.28
  5. Step 5: Solve for x
    x = 4,456,572.28/2,231.66
  6. Step 6: Final answer
    x = 1,996.98

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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.