Home / 3,072.38-4,245.45-2,186.65

Finding the Fourth Proportional to 3,072.38, 4,245.45 and 2,186.65

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Solution

The fourth proportional to 3,072.38, 4,245.45 and 2,186.65 is: 3,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.38 : 4,245.45 = 2,186.65 : x
  2. Step 2: Convert to fraction form
    3,072.38/4,245.45 = 2,186.65/x
  3. Step 3: Cross multiply
    3,072.38x = 4,245.45 × 2,186.65
  4. Step 4: Simplify right side
    3,072.38x = 9,283,286.47
  5. Step 5: Solve for x
    x = 9,283,286.47/3,072.38
  6. Step 6: Final answer
    x = 3,021.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.