Home / 3,992.93-5,989.17-1,219.35

Finding the Fourth Proportional to 3,992.93, 5,989.17 and 1,219.35

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Solution

The fourth proportional to 3,992.93, 5,989.17 and 1,219.35 is: 1,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.93 : 5,989.17 = 1,219.35 : x
  2. Step 2: Convert to fraction form
    3,992.93/5,989.17 = 1,219.35/x
  3. Step 3: Cross multiply
    3,992.93x = 5,989.17 × 1,219.35
  4. Step 4: Simplify right side
    3,992.93x = 7,302,921.47
  5. Step 5: Solve for x
    x = 7,302,921.47/3,992.93
  6. Step 6: Final answer
    x = 1,828.96

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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.