Home / 2,230.03-3,077.88-1,286.43

Finding the Fourth Proportional to 2,230.03, 3,077.88 and 1,286.43

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Solution

The fourth proportional to 2,230.03, 3,077.88 and 1,286.43 is: 1,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.03 : 3,077.88 = 1,286.43 : x
  2. Step 2: Convert to fraction form
    2,230.03/3,077.88 = 1,286.43/x
  3. Step 3: Cross multiply
    2,230.03x = 3,077.88 × 1,286.43
  4. Step 4: Simplify right side
    2,230.03x = 3,959,470.74
  5. Step 5: Solve for x
    x = 3,959,470.74/2,230.03
  6. Step 6: Final answer
    x = 1,775.52

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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.