Home / 2,286.13-3,154.92-1,291.43

Finding the Fourth Proportional to 2,286.13, 3,154.92 and 1,291.43

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Solution

The fourth proportional to 2,286.13, 3,154.92 and 1,291.43 is: 1,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.13 : 3,154.92 = 1,291.43 : x
  2. Step 2: Convert to fraction form
    2,286.13/3,154.92 = 1,291.43/x
  3. Step 3: Cross multiply
    2,286.13x = 3,154.92 × 1,291.43
  4. Step 4: Simplify right side
    2,286.13x = 4,074,358.34
  5. Step 5: Solve for x
    x = 4,074,358.34/2,286.13
  6. Step 6: Final answer
    x = 1,782.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.