Home / 7,964.10-11,939.92-3,578.48

Finding the Fourth Proportional to 7,964.10, 11,939.92 and 3,578.48

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Solution

The fourth proportional to 7,964.10, 11,939.92 and 3,578.48 is: 5,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.10 : 11,939.92 = 3,578.48 : x
  2. Step 2: Convert to fraction form
    7,964.10/11,939.92 = 3,578.48/x
  3. Step 3: Cross multiply
    7,964.10x = 11,939.92 × 3,578.48
  4. Step 4: Simplify right side
    7,964.10x = 42,726,764.92
  5. Step 5: Solve for x
    x = 42,726,764.92/7,964.10
  6. Step 6: Final answer
    x = 5,364.92

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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.