Home / 3,880.26-5,820.72-3,423.42

Finding the Fourth Proportional to 3,880.26, 5,820.72 and 3,423.42

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Solution

The fourth proportional to 3,880.26, 5,820.72 and 3,423.42 is: 5,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.26 : 5,820.72 = 3,423.42 : x
  2. Step 2: Convert to fraction form
    3,880.26/5,820.72 = 3,423.42/x
  3. Step 3: Cross multiply
    3,880.26x = 5,820.72 × 3,423.42
  4. Step 4: Simplify right side
    3,880.26x = 19,926,769.26
  5. Step 5: Solve for x
    x = 19,926,769.26/3,880.26
  6. Step 6: Final answer
    x = 5,135.42

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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.