Home / 7,961.84-11,942.76-3,578.48

Finding the Fourth Proportional to 7,961.84, 11,942.76 and 3,578.48

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Solution

The fourth proportional to 7,961.84, 11,942.76 and 3,578.48 is: 5,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.84 : 11,942.76 = 3,578.48 : x
  2. Step 2: Convert to fraction form
    7,961.84/11,942.76 = 3,578.48/x
  3. Step 3: Cross multiply
    7,961.84x = 11,942.76 × 3,578.48
  4. Step 4: Simplify right side
    7,961.84x = 42,736,927.80
  5. Step 5: Solve for x
    x = 42,736,927.80/7,961.84
  6. Step 6: Final answer
    x = 5,367.72

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Similar ratio
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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.