Home / 4,121.86-6,182.80-1,932.12

Finding the Fourth Proportional to 4,121.86, 6,182.80 and 1,932.12

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Solution

The fourth proportional to 4,121.86, 6,182.80 and 1,932.12 is: 2,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.86 : 6,182.80 = 1,932.12 : x
  2. Step 2: Convert to fraction form
    4,121.86/6,182.80 = 1,932.12/x
  3. Step 3: Cross multiply
    4,121.86x = 6,182.80 × 1,932.12
  4. Step 4: Simplify right side
    4,121.86x = 11,945,911.54
  5. Step 5: Solve for x
    x = 11,945,911.54/4,121.86
  6. Step 6: Final answer
    x = 2,898.18

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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.