Home / 5,579.64-8,370.86-3,939.39

Finding the Fourth Proportional to 5,579.64, 8,370.86 and 3,939.39

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Solution

The fourth proportional to 5,579.64, 8,370.86 and 3,939.39 is: 5,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.64 : 8,370.86 = 3,939.39 : x
  2. Step 2: Convert to fraction form
    5,579.64/8,370.86 = 3,939.39/x
  3. Step 3: Cross multiply
    5,579.64x = 8,370.86 × 3,939.39
  4. Step 4: Simplify right side
    5,579.64x = 32,976,062.48
  5. Step 5: Solve for x
    x = 32,976,062.48/5,579.64
  6. Step 6: Final answer
    x = 5,910.07

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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.