Home / 1,231.86-1,849.99-1,182.31

Finding the Fourth Proportional to 1,231.86, 1,849.99 and 1,182.31

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Solution

The fourth proportional to 1,231.86, 1,849.99 and 1,182.31 is: 1,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.86 : 1,849.99 = 1,182.31 : x
  2. Step 2: Convert to fraction form
    1,231.86/1,849.99 = 1,182.31/x
  3. Step 3: Cross multiply
    1,231.86x = 1,849.99 × 1,182.31
  4. Step 4: Simplify right side
    1,231.86x = 2,187,265.47
  5. Step 5: Solve for x
    x = 2,187,265.47/1,231.86
  6. Step 6: Final answer
    x = 1,775.58

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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.