Home / 3,195.38-4,785.05-2,021.85

Finding the Fourth Proportional to 3,195.38, 4,785.05 and 2,021.85

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Solution

The fourth proportional to 3,195.38, 4,785.05 and 2,021.85 is: 3,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.38 : 4,785.05 = 2,021.85 : x
  2. Step 2: Convert to fraction form
    3,195.38/4,785.05 = 2,021.85/x
  3. Step 3: Cross multiply
    3,195.38x = 4,785.05 × 2,021.85
  4. Step 4: Simplify right side
    3,195.38x = 9,674,643.23
  5. Step 5: Solve for x
    x = 9,674,643.23/3,195.38
  6. Step 6: Final answer
    x = 3,027.70

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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.