Home / 5,427.08-8,134.50-2,138.48

Finding the Fourth Proportional to 5,427.08, 8,134.50 and 2,138.48

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Solution

The fourth proportional to 5,427.08, 8,134.50 and 2,138.48 is: 3,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.08 : 8,134.50 = 2,138.48 : x
  2. Step 2: Convert to fraction form
    5,427.08/8,134.50 = 2,138.48/x
  3. Step 3: Cross multiply
    5,427.08x = 8,134.50 × 2,138.48
  4. Step 4: Simplify right side
    5,427.08x = 17,395,465.56
  5. Step 5: Solve for x
    x = 17,395,465.56/5,427.08
  6. Step 6: Final answer
    x = 3,205.31

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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.