Home / 2,189.17-3,286.62-1,301.33

Finding the Fourth Proportional to 2,189.17, 3,286.62 and 1,301.33

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Solution

The fourth proportional to 2,189.17, 3,286.62 and 1,301.33 is: 1,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.17 : 3,286.62 = 1,301.33 : x
  2. Step 2: Convert to fraction form
    2,189.17/3,286.62 = 1,301.33/x
  3. Step 3: Cross multiply
    2,189.17x = 3,286.62 × 1,301.33
  4. Step 4: Simplify right side
    2,189.17x = 4,276,977.20
  5. Step 5: Solve for x
    x = 4,276,977.20/2,189.17
  6. Step 6: Final answer
    x = 1,953.70

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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.