Home / 5,579.88-8,371.25-3,939.63

Finding the Fourth Proportional to 5,579.88, 8,371.25 and 3,939.63

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Solution

The fourth proportional to 5,579.88, 8,371.25 and 3,939.63 is: 5,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.88 : 8,371.25 = 3,939.63 : x
  2. Step 2: Convert to fraction form
    5,579.88/8,371.25 = 3,939.63/x
  3. Step 3: Cross multiply
    5,579.88x = 8,371.25 × 3,939.63
  4. Step 4: Simplify right side
    5,579.88x = 32,979,607.94
  5. Step 5: Solve for x
    x = 32,979,607.94/5,579.88
  6. Step 6: Final answer
    x = 5,910.45

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1.5x scale

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.