Home / 3,500.38-5,249.96-1,278.75

Finding the Fourth Proportional to 3,500.38, 5,249.96 and 1,278.75

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Solution

The fourth proportional to 3,500.38, 5,249.96 and 1,278.75 is: 1,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.38 : 5,249.96 = 1,278.75 : x
  2. Step 2: Convert to fraction form
    3,500.38/5,249.96 = 1,278.75/x
  3. Step 3: Cross multiply
    3,500.38x = 5,249.96 × 1,278.75
  4. Step 4: Simplify right side
    3,500.38x = 6,713,379.96
  5. Step 5: Solve for x
    x = 6,713,379.96/3,500.38
  6. Step 6: Final answer
    x = 1,917.90

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1.5x scale

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.