Home / 2,187.99-3,286.55-1,772.01

Finding the Fourth Proportional to 2,187.99, 3,286.55 and 1,772.01

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Solution

The fourth proportional to 2,187.99, 3,286.55 and 1,772.01 is: 2,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.99 : 3,286.55 = 1,772.01 : x
  2. Step 2: Convert to fraction form
    2,187.99/3,286.55 = 1,772.01/x
  3. Step 3: Cross multiply
    2,187.99x = 3,286.55 × 1,772.01
  4. Step 4: Simplify right side
    2,187.99x = 5,823,799.47
  5. Step 5: Solve for x
    x = 5,823,799.47/2,187.99
  6. Step 6: Final answer
    x = 2,661.71

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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.