Home / 3,433.42-5,137.82-2,972.78

Finding the Fourth Proportional to 3,433.42, 5,137.82 and 2,972.78

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Solution

The fourth proportional to 3,433.42, 5,137.82 and 2,972.78 is: 4,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.42 : 5,137.82 = 2,972.78 : x
  2. Step 2: Convert to fraction form
    3,433.42/5,137.82 = 2,972.78/x
  3. Step 3: Cross multiply
    3,433.42x = 5,137.82 × 2,972.78
  4. Step 4: Simplify right side
    3,433.42x = 15,273,606.52
  5. Step 5: Solve for x
    x = 15,273,606.52/3,433.42
  6. Step 6: Final answer
    x = 4,448.51

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1.5x scale

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.