Home / 5,905.68-8,149.88-3,387.90

Finding the Fourth Proportional to 5,905.68, 8,149.88 and 3,387.90

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Solution

The fourth proportional to 5,905.68, 8,149.88 and 3,387.90 is: 4,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.68 : 8,149.88 = 3,387.90 : x
  2. Step 2: Convert to fraction form
    5,905.68/8,149.88 = 3,387.90/x
  3. Step 3: Cross multiply
    5,905.68x = 8,149.88 × 3,387.90
  4. Step 4: Simplify right side
    5,905.68x = 27,610,978.45
  5. Step 5: Solve for x
    x = 27,610,978.45/5,905.68
  6. Step 6: Final answer
    x = 4,675.33

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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.