Home / 6,078.20-8,388.73-3,561.31

Finding the Fourth Proportional to 6,078.20, 8,388.73 and 3,561.31

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Solution

The fourth proportional to 6,078.20, 8,388.73 and 3,561.31 is: 4,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.20 : 8,388.73 = 3,561.31 : x
  2. Step 2: Convert to fraction form
    6,078.20/8,388.73 = 3,561.31/x
  3. Step 3: Cross multiply
    6,078.20x = 8,388.73 × 3,561.31
  4. Step 4: Simplify right side
    6,078.20x = 29,874,871.18
  5. Step 5: Solve for x
    x = 29,874,871.18/6,078.20
  6. Step 6: Final answer
    x = 4,915.09

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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.