Home / 1,231.33-1,845.76-1,012.63

Finding the Fourth Proportional to 1,231.33, 1,845.76 and 1,012.63

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Solution

The fourth proportional to 1,231.33, 1,845.76 and 1,012.63 is: 1,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.33 : 1,845.76 = 1,012.63 : x
  2. Step 2: Convert to fraction form
    1,231.33/1,845.76 = 1,012.63/x
  3. Step 3: Cross multiply
    1,231.33x = 1,845.76 × 1,012.63
  4. Step 4: Simplify right side
    1,231.33x = 1,869,057.66
  5. Step 5: Solve for x
    x = 1,869,057.66/1,231.33
  6. Step 6: Final answer
    x = 1,517.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.