Home / 3,414.14-5,121.21-948.96

Finding the Fourth Proportional to 3,414.14, 5,121.21 and 948.96

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Solution

The fourth proportional to 3,414.14, 5,121.21 and 948.96 is: 1,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.14 : 5,121.21 = 948.96 : x
  2. Step 2: Convert to fraction form
    3,414.14/5,121.21 = 948.96/x
  3. Step 3: Cross multiply
    3,414.14x = 5,121.21 × 948.96
  4. Step 4: Simplify right side
    3,414.14x = 4,859,823.44
  5. Step 5: Solve for x
    x = 4,859,823.44/3,414.14
  6. Step 6: Final answer
    x = 1,423.44

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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.