Home / 2,286.06-3,154.75-1,291.29

Finding the Fourth Proportional to 2,286.06, 3,154.75 and 1,291.29

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Solution

The fourth proportional to 2,286.06, 3,154.75 and 1,291.29 is: 1,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.06 : 3,154.75 = 1,291.29 : x
  2. Step 2: Convert to fraction form
    2,286.06/3,154.75 = 1,291.29/x
  3. Step 3: Cross multiply
    2,286.06x = 3,154.75 × 1,291.29
  4. Step 4: Simplify right side
    2,286.06x = 4,073,697.13
  5. Step 5: Solve for x
    x = 4,073,697.13/2,286.06
  6. Step 6: Final answer
    x = 1,781.97

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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.