Home / 3,469.70-5,202.12-1,278.15

Finding the Fourth Proportional to 3,469.70, 5,202.12 and 1,278.15

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Solution

The fourth proportional to 3,469.70, 5,202.12 and 1,278.15 is: 1,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.70 : 5,202.12 = 1,278.15 : x
  2. Step 2: Convert to fraction form
    3,469.70/5,202.12 = 1,278.15/x
  3. Step 3: Cross multiply
    3,469.70x = 5,202.12 × 1,278.15
  4. Step 4: Simplify right side
    3,469.70x = 6,649,089.68
  5. Step 5: Solve for x
    x = 6,649,089.68/3,469.70
  6. Step 6: Final answer
    x = 1,916.33

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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.