Home / 5,391.79-8,087.99-2,104.60

Finding the Fourth Proportional to 5,391.79, 8,087.99 and 2,104.60

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Solution

The fourth proportional to 5,391.79, 8,087.99 and 2,104.60 is: 3,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.79 : 8,087.99 = 2,104.60 : x
  2. Step 2: Convert to fraction form
    5,391.79/8,087.99 = 2,104.60/x
  3. Step 3: Cross multiply
    5,391.79x = 8,087.99 × 2,104.60
  4. Step 4: Simplify right side
    5,391.79x = 17,021,983.75
  5. Step 5: Solve for x
    x = 17,021,983.75/5,391.79
  6. Step 6: Final answer
    x = 3,157.02

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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.