Home / 3,939.52-5,901.32-2,378.64

Finding the Fourth Proportional to 3,939.52, 5,901.32 and 2,378.64

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Solution

The fourth proportional to 3,939.52, 5,901.32 and 2,378.64 is: 3,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.52 : 5,901.32 = 2,378.64 : x
  2. Step 2: Convert to fraction form
    3,939.52/5,901.32 = 2,378.64/x
  3. Step 3: Cross multiply
    3,939.52x = 5,901.32 × 2,378.64
  4. Step 4: Simplify right side
    3,939.52x = 14,037,115.80
  5. Step 5: Solve for x
    x = 14,037,115.80/3,939.52
  6. Step 6: Final answer
    x = 3,563.15

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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.