Home / 2,619.24-3,929.34-1,761.96

Finding the Fourth Proportional to 2,619.24, 3,929.34 and 1,761.96

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Solution

The fourth proportional to 2,619.24, 3,929.34 and 1,761.96 is: 2,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.24 : 3,929.34 = 1,761.96 : x
  2. Step 2: Convert to fraction form
    2,619.24/3,929.34 = 1,761.96/x
  3. Step 3: Cross multiply
    2,619.24x = 3,929.34 × 1,761.96
  4. Step 4: Simplify right side
    2,619.24x = 6,923,339.91
  5. Step 5: Solve for x
    x = 6,923,339.91/2,619.24
  6. Step 6: Final answer
    x = 2,643.26

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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.