Home / 4,960.40-6,845.60-3,190.80

Finding the Fourth Proportional to 4,960.40, 6,845.60 and 3,190.80

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Solution

The fourth proportional to 4,960.40, 6,845.60 and 3,190.80 is: 4,403.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,960.40 : 6,845.60 = 3,190.80 : x
  2. Step 2: Convert to fraction form
    4,960.40/6,845.60 = 3,190.80/x
  3. Step 3: Cross multiply
    4,960.40x = 6,845.60 × 3,190.80
  4. Step 4: Simplify right side
    4,960.40x = 21,842,940.48
  5. Step 5: Solve for x
    x = 21,842,940.48/4,960.40
  6. Step 6: Final answer
    x = 4,403.46

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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.