Home / 5,427.78-8,129.01-3,963.30

Finding the Fourth Proportional to 5,427.78, 8,129.01 and 3,963.30

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Solution

The fourth proportional to 5,427.78, 8,129.01 and 3,963.30 is: 5,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.78 : 8,129.01 = 3,963.30 : x
  2. Step 2: Convert to fraction form
    5,427.78/8,129.01 = 3,963.30/x
  3. Step 3: Cross multiply
    5,427.78x = 8,129.01 × 3,963.30
  4. Step 4: Simplify right side
    5,427.78x = 32,217,705.33
  5. Step 5: Solve for x
    x = 32,217,705.33/5,427.78
  6. Step 6: Final answer
    x = 5,935.71

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1.5x scale

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.