Home / 3,943.18-5,913.55-1,310.12

Finding the Fourth Proportional to 3,943.18, 5,913.55 and 1,310.12

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Solution

The fourth proportional to 3,943.18, 5,913.55 and 1,310.12 is: 1,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.18 : 5,913.55 = 1,310.12 : x
  2. Step 2: Convert to fraction form
    3,943.18/5,913.55 = 1,310.12/x
  3. Step 3: Cross multiply
    3,943.18x = 5,913.55 × 1,310.12
  4. Step 4: Simplify right side
    3,943.18x = 7,747,453.58
  5. Step 5: Solve for x
    x = 7,747,453.58/3,943.18
  6. Step 6: Final answer
    x = 1,964.78

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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.