Home / 3,963.87-5,469.21-2,371.05

Finding the Fourth Proportional to 3,963.87, 5,469.21 and 2,371.05

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Solution

The fourth proportional to 3,963.87, 5,469.21 and 2,371.05 is: 3,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.87 : 5,469.21 = 2,371.05 : x
  2. Step 2: Convert to fraction form
    3,963.87/5,469.21 = 2,371.05/x
  3. Step 3: Cross multiply
    3,963.87x = 5,469.21 × 2,371.05
  4. Step 4: Simplify right side
    3,963.87x = 12,967,770.37
  5. Step 5: Solve for x
    x = 12,967,770.37/3,963.87
  6. Step 6: Final answer
    x = 3,271.49

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1.5x scale

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.