Home / 7,947.48-11,919.84-2,104.68

Finding the Fourth Proportional to 7,947.48, 11,919.84 and 2,104.68

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Solution

The fourth proportional to 7,947.48, 11,919.84 and 2,104.68 is: 3,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.48 : 11,919.84 = 2,104.68 : x
  2. Step 2: Convert to fraction form
    7,947.48/11,919.84 = 2,104.68/x
  3. Step 3: Cross multiply
    7,947.48x = 11,919.84 × 2,104.68
  4. Step 4: Simplify right side
    7,947.48x = 25,087,448.85
  5. Step 5: Solve for x
    x = 25,087,448.85/7,947.48
  6. Step 6: Final answer
    x = 3,156.65

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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.