Home / 3,195.38-4,409.31-1,868.83

Finding the Fourth Proportional to 3,195.38, 4,409.31 and 1,868.83

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Solution

The fourth proportional to 3,195.38, 4,409.31 and 1,868.83 is: 2,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.38 : 4,409.31 = 1,868.83 : x
  2. Step 2: Convert to fraction form
    3,195.38/4,409.31 = 1,868.83/x
  3. Step 3: Cross multiply
    3,195.38x = 4,409.31 × 1,868.83
  4. Step 4: Simplify right side
    3,195.38x = 8,240,246.79
  5. Step 5: Solve for x
    x = 8,240,246.79/3,195.38
  6. Step 6: Final answer
    x = 2,578.80

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Half scale
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Double scale
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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.