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Finding the Fourth Proportional to 3,939.02, 5,910.90 and 1,598.74

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Solution

The fourth proportional to 3,939.02, 5,910.90 and 1,598.74 is: 2,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.02 : 5,910.90 = 1,598.74 : x
  2. Step 2: Convert to fraction form
    3,939.02/5,910.90 = 1,598.74/x
  3. Step 3: Cross multiply
    3,939.02x = 5,910.90 × 1,598.74
  4. Step 4: Simplify right side
    3,939.02x = 9,449,992.27
  5. Step 5: Solve for x
    x = 9,449,992.27/3,939.02
  6. Step 6: Final answer
    x = 2,399.07

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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.