Home / 3,414.24-5,121.32-1,223.12

Finding the Fourth Proportional to 3,414.24, 5,121.32 and 1,223.12

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Solution

The fourth proportional to 3,414.24, 5,121.32 and 1,223.12 is: 1,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.24 : 5,121.32 = 1,223.12 : x
  2. Step 2: Convert to fraction form
    3,414.24/5,121.32 = 1,223.12/x
  3. Step 3: Cross multiply
    3,414.24x = 5,121.32 × 1,223.12
  4. Step 4: Simplify right side
    3,414.24x = 6,263,988.92
  5. Step 5: Solve for x
    x = 6,263,988.92/3,414.24
  6. Step 6: Final answer
    x = 1,834.67

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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.