Home / 3,414.17-5,121.66-949.07

Finding the Fourth Proportional to 3,414.17, 5,121.66 and 949.07

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Solution

The fourth proportional to 3,414.17, 5,121.66 and 949.07 is: 1,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.17 : 5,121.66 = 949.07 : x
  2. Step 2: Convert to fraction form
    3,414.17/5,121.66 = 949.07/x
  3. Step 3: Cross multiply
    3,414.17x = 5,121.66 × 949.07
  4. Step 4: Simplify right side
    3,414.17x = 4,860,813.86
  5. Step 5: Solve for x
    x = 4,860,813.86/3,414.17
  6. Step 6: Final answer
    x = 1,423.72

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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.