Home / 2,764.70-4,148.17-1,120.82

Finding the Fourth Proportional to 2,764.70, 4,148.17 and 1,120.82

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Solution

The fourth proportional to 2,764.70, 4,148.17 and 1,120.82 is: 1,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.70 : 4,148.17 = 1,120.82 : x
  2. Step 2: Convert to fraction form
    2,764.70/4,148.17 = 1,120.82/x
  3. Step 3: Cross multiply
    2,764.70x = 4,148.17 × 1,120.82
  4. Step 4: Simplify right side
    2,764.70x = 4,649,351.90
  5. Step 5: Solve for x
    x = 4,649,351.90/2,764.70
  6. Step 6: Final answer
    x = 1,681.68

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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.