Home / 3,591.36-5,389.72-2,205.68

Finding the Fourth Proportional to 3,591.36, 5,389.72 and 2,205.68

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Solution

The fourth proportional to 3,591.36, 5,389.72 and 2,205.68 is: 3,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.36 : 5,389.72 = 2,205.68 : x
  2. Step 2: Convert to fraction form
    3,591.36/5,389.72 = 2,205.68/x
  3. Step 3: Cross multiply
    3,591.36x = 5,389.72 × 2,205.68
  4. Step 4: Simplify right side
    3,591.36x = 11,887,997.61
  5. Step 5: Solve for x
    x = 11,887,997.61/3,591.36
  6. Step 6: Final answer
    x = 3,310.17

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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.