Home / 3,112.23-4,668.39-803.73

Finding the Fourth Proportional to 3,112.23, 4,668.39 and 803.73

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Solution

The fourth proportional to 3,112.23, 4,668.39 and 803.73 is: 1,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.23 : 4,668.39 = 803.73 : x
  2. Step 2: Convert to fraction form
    3,112.23/4,668.39 = 803.73/x
  3. Step 3: Cross multiply
    3,112.23x = 4,668.39 × 803.73
  4. Step 4: Simplify right side
    3,112.23x = 3,752,125.09
  5. Step 5: Solve for x
    x = 3,752,125.09/3,112.23
  6. Step 6: Final answer
    x = 1,205.61

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1.5x scale

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.