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Finding the Fourth Proportional to 6,781.50, 10,176.09 and 3,133.50

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Solution

The fourth proportional to 6,781.50, 10,176.09 and 3,133.50 is: 4,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.50 : 10,176.09 = 3,133.50 : x
  2. Step 2: Convert to fraction form
    6,781.50/10,176.09 = 3,133.50/x
  3. Step 3: Cross multiply
    6,781.50x = 10,176.09 × 3,133.50
  4. Step 4: Simplify right side
    6,781.50x = 31,886,778.02
  5. Step 5: Solve for x
    x = 31,886,778.02/6,781.50
  6. Step 6: Final answer
    x = 4,702.02

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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.