Home / 6,800.80-10,190.40-4,489.60

Finding the Fourth Proportional to 6,800.80, 10,190.40 and 4,489.60

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Solution

The fourth proportional to 6,800.80, 10,190.40 and 4,489.60 is: 6,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.80 : 10,190.40 = 4,489.60 : x
  2. Step 2: Convert to fraction form
    6,800.80/10,190.40 = 4,489.60/x
  3. Step 3: Cross multiply
    6,800.80x = 10,190.40 × 4,489.60
  4. Step 4: Simplify right side
    6,800.80x = 45,750,819.84
  5. Step 5: Solve for x
    x = 45,750,819.84/6,800.80
  6. Step 6: Final answer
    x = 6,727.27

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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.