Home / 6,669.20-10,003.80-4,190.60

Finding the Fourth Proportional to 6,669.20, 10,003.80 and 4,190.60

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Solution

The fourth proportional to 6,669.20, 10,003.80 and 4,190.60 is: 6,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.20 : 10,003.80 = 4,190.60 : x
  2. Step 2: Convert to fraction form
    6,669.20/10,003.80 = 4,190.60/x
  3. Step 3: Cross multiply
    6,669.20x = 10,003.80 × 4,190.60
  4. Step 4: Simplify right side
    6,669.20x = 41,921,924.28
  5. Step 5: Solve for x
    x = 41,921,924.28/6,669.20
  6. Step 6: Final answer
    x = 6,285.90

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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.