Home / 3,770.45-5,641.78-2,940.07

Finding the Fourth Proportional to 3,770.45, 5,641.78 and 2,940.07

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Solution

The fourth proportional to 3,770.45, 5,641.78 and 2,940.07 is: 4,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.45 : 5,641.78 = 2,940.07 : x
  2. Step 2: Convert to fraction form
    3,770.45/5,641.78 = 2,940.07/x
  3. Step 3: Cross multiply
    3,770.45x = 5,641.78 × 2,940.07
  4. Step 4: Simplify right side
    3,770.45x = 16,587,230.36
  5. Step 5: Solve for x
    x = 16,587,230.36/3,770.45
  6. Step 6: Final answer
    x = 4,399.27

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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.