Home / 4,456.78-6,680.75-2,112.66

Finding the Fourth Proportional to 4,456.78, 6,680.75 and 2,112.66

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Solution

The fourth proportional to 4,456.78, 6,680.75 and 2,112.66 is: 3,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.78 : 6,680.75 = 2,112.66 : x
  2. Step 2: Convert to fraction form
    4,456.78/6,680.75 = 2,112.66/x
  3. Step 3: Cross multiply
    4,456.78x = 6,680.75 × 2,112.66
  4. Step 4: Simplify right side
    4,456.78x = 14,114,142.73
  5. Step 5: Solve for x
    x = 14,114,142.73/4,456.78
  6. Step 6: Final answer
    x = 3,166.89

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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.