Home / 5,414.36-8,118.24-2,129

Finding the Fourth Proportional to 5,414.36, 8,118.24 and 2,129

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Solution

The fourth proportional to 5,414.36, 8,118.24 and 2,129 is: 3,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.36 : 8,118.24 = 2,129 : x
  2. Step 2: Convert to fraction form
    5,414.36/8,118.24 = 2,129/x
  3. Step 3: Cross multiply
    5,414.36x = 8,118.24 × 2,129
  4. Step 4: Simplify right side
    5,414.36x = 17,283,732.96
  5. Step 5: Solve for x
    x = 17,283,732.96/5,414.36
  6. Step 6: Final answer
    x = 3,192.20

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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.