Home / 6,078.84-8,391.96-4,099.80

Finding the Fourth Proportional to 6,078.84, 8,391.96 and 4,099.80

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Solution

The fourth proportional to 6,078.84, 8,391.96 and 4,099.80 is: 5,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.84 : 8,391.96 = 4,099.80 : x
  2. Step 2: Convert to fraction form
    6,078.84/8,391.96 = 4,099.80/x
  3. Step 3: Cross multiply
    6,078.84x = 8,391.96 × 4,099.80
  4. Step 4: Simplify right side
    6,078.84x = 34,405,357.61
  5. Step 5: Solve for x
    x = 34,405,357.61/6,078.84
  6. Step 6: Final answer
    x = 5,659.86

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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.