Home / 3,001.62-4,144.65-1,939.92

Finding the Fourth Proportional to 3,001.62, 4,144.65 and 1,939.92

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Solution

The fourth proportional to 3,001.62, 4,144.65 and 1,939.92 is: 2,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.62 : 4,144.65 = 1,939.92 : x
  2. Step 2: Convert to fraction form
    3,001.62/4,144.65 = 1,939.92/x
  3. Step 3: Cross multiply
    3,001.62x = 4,144.65 × 1,939.92
  4. Step 4: Simplify right side
    3,001.62x = 8,040,289.43
  5. Step 5: Solve for x
    x = 8,040,289.43/3,001.62
  6. Step 6: Final answer
    x = 2,678.65

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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.