Home / 1,481.25-2,219.04-986.34

Finding the Fourth Proportional to 1,481.25, 2,219.04 and 986.34

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Solution

The fourth proportional to 1,481.25, 2,219.04 and 986.34 is: 1,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.25 : 2,219.04 = 986.34 : x
  2. Step 2: Convert to fraction form
    1,481.25/2,219.04 = 986.34/x
  3. Step 3: Cross multiply
    1,481.25x = 2,219.04 × 986.34
  4. Step 4: Simplify right side
    1,481.25x = 2,188,727.91
  5. Step 5: Solve for x
    x = 2,188,727.91/1,481.25
  6. Step 6: Final answer
    x = 1,477.62

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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.