Home / 4,190.76-6,280.20-3,086.46

Finding the Fourth Proportional to 4,190.76, 6,280.20 and 3,086.46

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Solution

The fourth proportional to 4,190.76, 6,280.20 and 3,086.46 is: 4,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.76 : 6,280.20 = 3,086.46 : x
  2. Step 2: Convert to fraction form
    4,190.76/6,280.20 = 3,086.46/x
  3. Step 3: Cross multiply
    4,190.76x = 6,280.20 × 3,086.46
  4. Step 4: Simplify right side
    4,190.76x = 19,383,586.09
  5. Step 5: Solve for x
    x = 19,383,586.09/4,190.76
  6. Step 6: Final answer
    x = 4,625.32

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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.