Home / 3,947.08-5,920.89-1,351.84

Finding the Fourth Proportional to 3,947.08, 5,920.89 and 1,351.84

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Solution

The fourth proportional to 3,947.08, 5,920.89 and 1,351.84 is: 2,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.08 : 5,920.89 = 1,351.84 : x
  2. Step 2: Convert to fraction form
    3,947.08/5,920.89 = 1,351.84/x
  3. Step 3: Cross multiply
    3,947.08x = 5,920.89 × 1,351.84
  4. Step 4: Simplify right side
    3,947.08x = 8,004,095.94
  5. Step 5: Solve for x
    x = 8,004,095.94/3,947.08
  6. Step 6: Final answer
    x = 2,027.85

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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.