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Finding the Fourth Proportional to 4,889.66, 6,745.97 and 3,211.97

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Solution

The fourth proportional to 4,889.66, 6,745.97 and 3,211.97 is: 4,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.66 : 6,745.97 = 3,211.97 : x
  2. Step 2: Convert to fraction form
    4,889.66/6,745.97 = 3,211.97/x
  3. Step 3: Cross multiply
    4,889.66x = 6,745.97 × 3,211.97
  4. Step 4: Simplify right side
    4,889.66x = 21,667,803.47
  5. Step 5: Solve for x
    x = 21,667,803.47/4,889.66
  6. Step 6: Final answer
    x = 4,431.36

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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.