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Finding the Fourth Proportional to 3,989.28, 5,994 and 2,529.12

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Solution

The fourth proportional to 3,989.28, 5,994 and 2,529.12 is: 3,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.28 : 5,994 = 2,529.12 : x
  2. Step 2: Convert to fraction form
    3,989.28/5,994 = 2,529.12/x
  3. Step 3: Cross multiply
    3,989.28x = 5,994 × 2,529.12
  4. Step 4: Simplify right side
    3,989.28x = 15,159,545.28
  5. Step 5: Solve for x
    x = 15,159,545.28/3,989.28
  6. Step 6: Final answer
    x = 3,800.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.