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Finding the Fourth Proportional to 6,119.87, 8,442.92 and 3,994.67

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Solution

The fourth proportional to 6,119.87, 8,442.92 and 3,994.67 is: 5,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.87 : 8,442.92 = 3,994.67 : x
  2. Step 2: Convert to fraction form
    6,119.87/8,442.92 = 3,994.67/x
  3. Step 3: Cross multiply
    6,119.87x = 8,442.92 × 3,994.67
  4. Step 4: Simplify right side
    6,119.87x = 33,726,710.33
  5. Step 5: Solve for x
    x = 33,726,710.33/6,119.87
  6. Step 6: Final answer
    x = 5,511.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.