Home / 7,939.60-11,911.38-2,392.82

Finding the Fourth Proportional to 7,939.60, 11,911.38 and 2,392.82

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Solution

The fourth proportional to 7,939.60, 11,911.38 and 2,392.82 is: 3,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.60 : 11,911.38 = 2,392.82 : x
  2. Step 2: Convert to fraction form
    7,939.60/11,911.38 = 2,392.82/x
  3. Step 3: Cross multiply
    7,939.60x = 11,911.38 × 2,392.82
  4. Step 4: Simplify right side
    7,939.60x = 28,501,788.29
  5. Step 5: Solve for x
    x = 28,501,788.29/7,939.60
  6. Step 6: Final answer
    x = 3,589.83

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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.