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Finding the Fourth Proportional to 3,958.63, 5,938.19 and 1,325.99

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Solution

The fourth proportional to 3,958.63, 5,938.19 and 1,325.99 is: 1,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.63 : 5,938.19 = 1,325.99 : x
  2. Step 2: Convert to fraction form
    3,958.63/5,938.19 = 1,325.99/x
  3. Step 3: Cross multiply
    3,958.63x = 5,938.19 × 1,325.99
  4. Step 4: Simplify right side
    3,958.63x = 7,873,980.56
  5. Step 5: Solve for x
    x = 7,873,980.56/3,958.63
  6. Step 6: Final answer
    x = 1,989.07

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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.