Home / 3,474.89-5,212.56-1,223.15

Finding the Fourth Proportional to 3,474.89, 5,212.56 and 1,223.15

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Solution

The fourth proportional to 3,474.89, 5,212.56 and 1,223.15 is: 1,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.89 : 5,212.56 = 1,223.15 : x
  2. Step 2: Convert to fraction form
    3,474.89/5,212.56 = 1,223.15/x
  3. Step 3: Cross multiply
    3,474.89x = 5,212.56 × 1,223.15
  4. Step 4: Simplify right side
    3,474.89x = 6,375,719.57
  5. Step 5: Solve for x
    x = 6,375,719.57/3,474.89
  6. Step 6: Final answer
    x = 1,834.80

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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.