Home / 2,879.43-3,973.23-1,620.44

Finding the Fourth Proportional to 2,879.43, 3,973.23 and 1,620.44

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Solution

The fourth proportional to 2,879.43, 3,973.23 and 1,620.44 is: 2,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.43 : 3,973.23 = 1,620.44 : x
  2. Step 2: Convert to fraction form
    2,879.43/3,973.23 = 1,620.44/x
  3. Step 3: Cross multiply
    2,879.43x = 3,973.23 × 1,620.44
  4. Step 4: Simplify right side
    2,879.43x = 6,438,360.96
  5. Step 5: Solve for x
    x = 6,438,360.96/2,879.43
  6. Step 6: Final answer
    x = 2,235.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.