Home / 3,671.20-5,507.34-1,331.38

Finding the Fourth Proportional to 3,671.20, 5,507.34 and 1,331.38

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Solution

The fourth proportional to 3,671.20, 5,507.34 and 1,331.38 is: 1,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.20 : 5,507.34 = 1,331.38 : x
  2. Step 2: Convert to fraction form
    3,671.20/5,507.34 = 1,331.38/x
  3. Step 3: Cross multiply
    3,671.20x = 5,507.34 × 1,331.38
  4. Step 4: Simplify right side
    3,671.20x = 7,332,362.33
  5. Step 5: Solve for x
    x = 7,332,362.33/3,671.20
  6. Step 6: Final answer
    x = 1,997.27

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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.