Home / 2,286.14-3,428.51-1,189.91

Finding the Fourth Proportional to 2,286.14, 3,428.51 and 1,189.91

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Solution

The fourth proportional to 2,286.14, 3,428.51 and 1,189.91 is: 1,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.14 : 3,428.51 = 1,189.91 : x
  2. Step 2: Convert to fraction form
    2,286.14/3,428.51 = 1,189.91/x
  3. Step 3: Cross multiply
    2,286.14x = 3,428.51 × 1,189.91
  4. Step 4: Simplify right side
    2,286.14x = 4,079,595.24
  5. Step 5: Solve for x
    x = 4,079,595.24/2,286.14
  6. Step 6: Final answer
    x = 1,784.49

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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.