Home / 3,939.30-5,903.38-2,185.08

Finding the Fourth Proportional to 3,939.30, 5,903.38 and 2,185.08

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Solution

The fourth proportional to 3,939.30, 5,903.38 and 2,185.08 is: 3,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.30 : 5,903.38 = 2,185.08 : x
  2. Step 2: Convert to fraction form
    3,939.30/5,903.38 = 2,185.08/x
  3. Step 3: Cross multiply
    3,939.30x = 5,903.38 × 2,185.08
  4. Step 4: Simplify right side
    3,939.30x = 12,899,338.16
  5. Step 5: Solve for x
    x = 12,899,338.16/3,939.30
  6. Step 6: Final answer
    x = 3,274.53

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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.