Home / 5,147.45-7,717.07-2,223.75

Finding the Fourth Proportional to 5,147.45, 7,717.07 and 2,223.75

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Solution

The fourth proportional to 5,147.45, 7,717.07 and 2,223.75 is: 3,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.45 : 7,717.07 = 2,223.75 : x
  2. Step 2: Convert to fraction form
    5,147.45/7,717.07 = 2,223.75/x
  3. Step 3: Cross multiply
    5,147.45x = 7,717.07 × 2,223.75
  4. Step 4: Simplify right side
    5,147.45x = 17,160,868.91
  5. Step 5: Solve for x
    x = 17,160,868.91/5,147.45
  6. Step 6: Final answer
    x = 3,333.86

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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.