Home / 1,481.34-2,222.28-659.61

Finding the Fourth Proportional to 1,481.34, 2,222.28 and 659.61

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Solution

The fourth proportional to 1,481.34, 2,222.28 and 659.61 is: 989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.34 : 2,222.28 = 659.61 : x
  2. Step 2: Convert to fraction form
    1,481.34/2,222.28 = 659.61/x
  3. Step 3: Cross multiply
    1,481.34x = 2,222.28 × 659.61
  4. Step 4: Simplify right side
    1,481.34x = 1,465,838.11
  5. Step 5: Solve for x
    x = 1,465,838.11/1,481.34
  6. Step 6: Final answer
    x = 989.54

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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.