Home / 2,764.38-4,143.36-1,118.88

Finding the Fourth Proportional to 2,764.38, 4,143.36 and 1,118.88

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Solution

The fourth proportional to 2,764.38, 4,143.36 and 1,118.88 is: 1,677.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.38 : 4,143.36 = 1,118.88 : x
  2. Step 2: Convert to fraction form
    2,764.38/4,143.36 = 1,118.88/x
  3. Step 3: Cross multiply
    2,764.38x = 4,143.36 × 1,118.88
  4. Step 4: Simplify right side
    2,764.38x = 4,635,922.64
  5. Step 5: Solve for x
    x = 4,635,922.64/2,764.38
  6. Step 6: Final answer
    x = 1,677.02

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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.