Home / 3,207.63-4,422.24-2,879.58

Finding the Fourth Proportional to 3,207.63, 4,422.24 and 2,879.58

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Solution

The fourth proportional to 3,207.63, 4,422.24 and 2,879.58 is: 3,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.63 : 4,422.24 = 2,879.58 : x
  2. Step 2: Convert to fraction form
    3,207.63/4,422.24 = 2,879.58/x
  3. Step 3: Cross multiply
    3,207.63x = 4,422.24 × 2,879.58
  4. Step 4: Simplify right side
    3,207.63x = 12,734,193.86
  5. Step 5: Solve for x
    x = 12,734,193.86/3,207.63
  6. Step 6: Final answer
    x = 3,969.97

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1.5x scale

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.