Home / 2,789.09-4,180.05-1,143.66

Finding the Fourth Proportional to 2,789.09, 4,180.05 and 1,143.66

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Solution

The fourth proportional to 2,789.09, 4,180.05 and 1,143.66 is: 1,714.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.09 : 4,180.05 = 1,143.66 : x
  2. Step 2: Convert to fraction form
    2,789.09/4,180.05 = 1,143.66/x
  3. Step 3: Cross multiply
    2,789.09x = 4,180.05 × 1,143.66
  4. Step 4: Simplify right side
    2,789.09x = 4,780,555.98
  5. Step 5: Solve for x
    x = 4,780,555.98/2,789.09
  6. Step 6: Final answer
    x = 1,714.02

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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.