Home / 1,481.41-2,220.58-660.07

Finding the Fourth Proportional to 1,481.41, 2,220.58 and 660.07

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Solution

The fourth proportional to 1,481.41, 2,220.58 and 660.07 is: 989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.41 : 2,220.58 = 660.07 : x
  2. Step 2: Convert to fraction form
    1,481.41/2,220.58 = 660.07/x
  3. Step 3: Cross multiply
    1,481.41x = 2,220.58 × 660.07
  4. Step 4: Simplify right side
    1,481.41x = 1,465,738.24
  5. Step 5: Solve for x
    x = 1,465,738.24/1,481.41
  6. Step 6: Final answer
    x = 989.42

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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.