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Finding the Fourth Proportional to 5,223.38, 7,834.86 and 2,102.48

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Solution

The fourth proportional to 5,223.38, 7,834.86 and 2,102.48 is: 3,153.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.38 : 7,834.86 = 2,102.48 : x
  2. Step 2: Convert to fraction form
    5,223.38/7,834.86 = 2,102.48/x
  3. Step 3: Cross multiply
    5,223.38x = 7,834.86 × 2,102.48
  4. Step 4: Simplify right side
    5,223.38x = 16,472,636.45
  5. Step 5: Solve for x
    x = 16,472,636.45/5,223.38
  6. Step 6: Final answer
    x = 3,153.64

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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.