Home / 3,591.05-5,384.43-2,131.20

Finding the Fourth Proportional to 3,591.05, 5,384.43 and 2,131.20

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Solution

The fourth proportional to 3,591.05, 5,384.43 and 2,131.20 is: 3,195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.05 : 5,384.43 = 2,131.20 : x
  2. Step 2: Convert to fraction form
    3,591.05/5,384.43 = 2,131.20/x
  3. Step 3: Cross multiply
    3,591.05x = 5,384.43 × 2,131.20
  4. Step 4: Simplify right side
    3,591.05x = 11,475,297.22
  5. Step 5: Solve for x
    x = 11,475,297.22/3,591.05
  6. Step 6: Final answer
    x = 3,195.53

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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.