Home / 2,764.18-4,145.82-1,120.66

Finding the Fourth Proportional to 2,764.18, 4,145.82 and 1,120.66

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Solution

The fourth proportional to 2,764.18, 4,145.82 and 1,120.66 is: 1,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.18 : 4,145.82 = 1,120.66 : x
  2. Step 2: Convert to fraction form
    2,764.18/4,145.82 = 1,120.66/x
  3. Step 3: Cross multiply
    2,764.18x = 4,145.82 × 1,120.66
  4. Step 4: Simplify right side
    2,764.18x = 4,646,054.64
  5. Step 5: Solve for x
    x = 4,646,054.64/2,764.18
  6. Step 6: Final answer
    x = 1,680.81

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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.