Home / 3,941.68-5,439.78-2,369.80

Finding the Fourth Proportional to 3,941.68, 5,439.78 and 2,369.80

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Solution

The fourth proportional to 3,941.68, 5,439.78 and 2,369.80 is: 3,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.68 : 5,439.78 = 2,369.80 : x
  2. Step 2: Convert to fraction form
    3,941.68/5,439.78 = 2,369.80/x
  3. Step 3: Cross multiply
    3,941.68x = 5,439.78 × 2,369.80
  4. Step 4: Simplify right side
    3,941.68x = 12,891,190.64
  5. Step 5: Solve for x
    x = 12,891,190.64/3,941.68
  6. Step 6: Final answer
    x = 3,270.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.