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Finding the Fourth Proportional to 8,038.62, 12,062.90 and 3,879.05

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Solution

The fourth proportional to 8,038.62, 12,062.90 and 3,879.05 is: 5,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,038.62 : 12,062.90 = 3,879.05 : x
  2. Step 2: Convert to fraction form
    8,038.62/12,062.90 = 3,879.05/x
  3. Step 3: Cross multiply
    8,038.62x = 12,062.90 × 3,879.05
  4. Step 4: Simplify right side
    8,038.62x = 46,792,592.25
  5. Step 5: Solve for x
    x = 46,792,592.25/8,038.62
  6. Step 6: Final answer
    x = 5,820.97

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1.5x scale

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.