Home / 6,664.78-9,196.59-3,680.38

Finding the Fourth Proportional to 6,664.78, 9,196.59 and 3,680.38

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Solution

The fourth proportional to 6,664.78, 9,196.59 and 3,680.38 is: 5,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.78 : 9,196.59 = 3,680.38 : x
  2. Step 2: Convert to fraction form
    6,664.78/9,196.59 = 3,680.38/x
  3. Step 3: Cross multiply
    6,664.78x = 9,196.59 × 3,680.38
  4. Step 4: Simplify right side
    6,664.78x = 33,846,945.90
  5. Step 5: Solve for x
    x = 33,846,945.90/6,664.78
  6. Step 6: Final answer
    x = 5,078.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.