Home / 2,007.38-2,767.97-1,378.22

Finding the Fourth Proportional to 2,007.38, 2,767.97 and 1,378.22

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Solution

The fourth proportional to 2,007.38, 2,767.97 and 1,378.22 is: 1,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.38 : 2,767.97 = 1,378.22 : x
  2. Step 2: Convert to fraction form
    2,007.38/2,767.97 = 1,378.22/x
  3. Step 3: Cross multiply
    2,007.38x = 2,767.97 × 1,378.22
  4. Step 4: Simplify right side
    2,007.38x = 3,814,861.22
  5. Step 5: Solve for x
    x = 3,814,861.22/2,007.38
  6. Step 6: Final answer
    x = 1,900.42

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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.