Home / 3,989.66-5,983.37-2,385.75

Finding the Fourth Proportional to 3,989.66, 5,983.37 and 2,385.75

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Solution

The fourth proportional to 3,989.66, 5,983.37 and 2,385.75 is: 3,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.66 : 5,983.37 = 2,385.75 : x
  2. Step 2: Convert to fraction form
    3,989.66/5,983.37 = 2,385.75/x
  3. Step 3: Cross multiply
    3,989.66x = 5,983.37 × 2,385.75
  4. Step 4: Simplify right side
    3,989.66x = 14,274,844.43
  5. Step 5: Solve for x
    x = 14,274,844.43/3,989.66
  6. Step 6: Final answer
    x = 3,577.96

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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.