Home / 3,940.11-5,909.79-1,204.11

Finding the Fourth Proportional to 3,940.11, 5,909.79 and 1,204.11

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Solution

The fourth proportional to 3,940.11, 5,909.79 and 1,204.11 is: 1,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.11 : 5,909.79 = 1,204.11 : x
  2. Step 2: Convert to fraction form
    3,940.11/5,909.79 = 1,204.11/x
  3. Step 3: Cross multiply
    3,940.11x = 5,909.79 × 1,204.11
  4. Step 4: Simplify right side
    3,940.11x = 7,116,037.24
  5. Step 5: Solve for x
    x = 7,116,037.24/3,940.11
  6. Step 6: Final answer
    x = 1,806.05

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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.