Home / 5,270.27-7,904.79-2,147.11

Finding the Fourth Proportional to 5,270.27, 7,904.79 and 2,147.11

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Solution

The fourth proportional to 5,270.27, 7,904.79 and 2,147.11 is: 3,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.27 : 7,904.79 = 2,147.11 : x
  2. Step 2: Convert to fraction form
    5,270.27/7,904.79 = 2,147.11/x
  3. Step 3: Cross multiply
    5,270.27x = 7,904.79 × 2,147.11
  4. Step 4: Simplify right side
    5,270.27x = 16,972,433.89
  5. Step 5: Solve for x
    x = 16,972,433.89/5,270.27
  6. Step 6: Final answer
    x = 3,220.41

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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.