Home / 4,021.47-6,031.86-1,680.62

Finding the Fourth Proportional to 4,021.47, 6,031.86 and 1,680.62

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Solution

The fourth proportional to 4,021.47, 6,031.86 and 1,680.62 is: 2,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.47 : 6,031.86 = 1,680.62 : x
  2. Step 2: Convert to fraction form
    4,021.47/6,031.86 = 1,680.62/x
  3. Step 3: Cross multiply
    4,021.47x = 6,031.86 × 1,680.62
  4. Step 4: Simplify right side
    4,021.47x = 10,137,234.39
  5. Step 5: Solve for x
    x = 10,137,234.39/4,021.47
  6. Step 6: Final answer
    x = 2,520.78

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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.