Home / 3,399.38-4,691.68-1,907.90

Finding the Fourth Proportional to 3,399.38, 4,691.68 and 1,907.90

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Solution

The fourth proportional to 3,399.38, 4,691.68 and 1,907.90 is: 2,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.38 : 4,691.68 = 1,907.90 : x
  2. Step 2: Convert to fraction form
    3,399.38/4,691.68 = 1,907.90/x
  3. Step 3: Cross multiply
    3,399.38x = 4,691.68 × 1,907.90
  4. Step 4: Simplify right side
    3,399.38x = 8,951,256.27
  5. Step 5: Solve for x
    x = 8,951,256.27/3,399.38
  6. Step 6: Final answer
    x = 2,633.20

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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.