Home / 5,379.96-8,066.82-3,190.20

Finding the Fourth Proportional to 5,379.96, 8,066.82 and 3,190.20

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Solution

The fourth proportional to 5,379.96, 8,066.82 and 3,190.20 is: 4,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.96 : 8,066.82 = 3,190.20 : x
  2. Step 2: Convert to fraction form
    5,379.96/8,066.82 = 3,190.20/x
  3. Step 3: Cross multiply
    5,379.96x = 8,066.82 × 3,190.20
  4. Step 4: Simplify right side
    5,379.96x = 25,734,769.16
  5. Step 5: Solve for x
    x = 25,734,769.16/5,379.96
  6. Step 6: Final answer
    x = 4,783.45

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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.