Home / 2,761.83-4,145.99-1,119.56

Finding the Fourth Proportional to 2,761.83, 4,145.99 and 1,119.56

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Solution

The fourth proportional to 2,761.83, 4,145.99 and 1,119.56 is: 1,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.83 : 4,145.99 = 1,119.56 : x
  2. Step 2: Convert to fraction form
    2,761.83/4,145.99 = 1,119.56/x
  3. Step 3: Cross multiply
    2,761.83x = 4,145.99 × 1,119.56
  4. Step 4: Simplify right side
    2,761.83x = 4,641,658.24
  5. Step 5: Solve for x
    x = 4,641,658.24/2,761.83
  6. Step 6: Final answer
    x = 1,680.65

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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.