Home / 3,192.86-4,787.77-1,112.61

Finding the Fourth Proportional to 3,192.86, 4,787.77 and 1,112.61

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Solution

The fourth proportional to 3,192.86, 4,787.77 and 1,112.61 is: 1,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.86 : 4,787.77 = 1,112.61 : x
  2. Step 2: Convert to fraction form
    3,192.86/4,787.77 = 1,112.61/x
  3. Step 3: Cross multiply
    3,192.86x = 4,787.77 × 1,112.61
  4. Step 4: Simplify right side
    3,192.86x = 5,326,891.28
  5. Step 5: Solve for x
    x = 5,326,891.28/3,192.86
  6. Step 6: Final answer
    x = 1,668.38

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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.