Home / 7,947.46-11,919.83-2,104.66

Finding the Fourth Proportional to 7,947.46, 11,919.83 and 2,104.66

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Solution

The fourth proportional to 7,947.46, 11,919.83 and 2,104.66 is: 3,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.46 : 11,919.83 = 2,104.66 : x
  2. Step 2: Convert to fraction form
    7,947.46/11,919.83 = 2,104.66/x
  3. Step 3: Cross multiply
    7,947.46x = 11,919.83 × 2,104.66
  4. Step 4: Simplify right side
    7,947.46x = 25,087,129.81
  5. Step 5: Solve for x
    x = 25,087,129.81/7,947.46
  6. Step 6: Final answer
    x = 3,156.62

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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.