Home / 3,299.05-4,940.72-1,909.46

Finding the Fourth Proportional to 3,299.05, 4,940.72 and 1,909.46

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Solution

The fourth proportional to 3,299.05, 4,940.72 and 1,909.46 is: 2,859.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.05 : 4,940.72 = 1,909.46 : x
  2. Step 2: Convert to fraction form
    3,299.05/4,940.72 = 1,909.46/x
  3. Step 3: Cross multiply
    3,299.05x = 4,940.72 × 1,909.46
  4. Step 4: Simplify right side
    3,299.05x = 9,434,072.96
  5. Step 5: Solve for x
    x = 9,434,072.96/3,299.05
  6. Step 6: Final answer
    x = 2,859.64

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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.