Home / 7,946.49-11,919.82-2,399.88

Finding the Fourth Proportional to 7,946.49, 11,919.82 and 2,399.88

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Solution

The fourth proportional to 7,946.49, 11,919.82 and 2,399.88 is: 3,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.49 : 11,919.82 = 2,399.88 : x
  2. Step 2: Convert to fraction form
    7,946.49/11,919.82 = 2,399.88/x
  3. Step 3: Cross multiply
    7,946.49x = 11,919.82 × 2,399.88
  4. Step 4: Simplify right side
    7,946.49x = 28,606,137.62
  5. Step 5: Solve for x
    x = 28,606,137.62/7,946.49
  6. Step 6: Final answer
    x = 3,599.85

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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.