Home / 3,427.38-5,145.93-3,270.78

Finding the Fourth Proportional to 3,427.38, 5,145.93 and 3,270.78

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Solution

The fourth proportional to 3,427.38, 5,145.93 and 3,270.78 is: 4,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.38 : 5,145.93 = 3,270.78 : x
  2. Step 2: Convert to fraction form
    3,427.38/5,145.93 = 3,270.78/x
  3. Step 3: Cross multiply
    3,427.38x = 5,145.93 × 3,270.78
  4. Step 4: Simplify right side
    3,427.38x = 16,831,204.93
  5. Step 5: Solve for x
    x = 16,831,204.93/3,427.38
  6. Step 6: Final answer
    x = 4,910.81

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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.