Home / 5,424.17-8,138.07-2,135.48

Finding the Fourth Proportional to 5,424.17, 8,138.07 and 2,135.48

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Solution

The fourth proportional to 5,424.17, 8,138.07 and 2,135.48 is: 3,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.17 : 8,138.07 = 2,135.48 : x
  2. Step 2: Convert to fraction form
    5,424.17/8,138.07 = 2,135.48/x
  3. Step 3: Cross multiply
    5,424.17x = 8,138.07 × 2,135.48
  4. Step 4: Simplify right side
    5,424.17x = 17,378,645.03
  5. Step 5: Solve for x
    x = 17,378,645.03/5,424.17
  6. Step 6: Final answer
    x = 3,203.93

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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.