Home / 3,847.86-5,765.58-1,996.20

Finding the Fourth Proportional to 3,847.86, 5,765.58 and 1,996.20

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Solution

The fourth proportional to 3,847.86, 5,765.58 and 1,996.20 is: 2,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.86 : 5,765.58 = 1,996.20 : x
  2. Step 2: Convert to fraction form
    3,847.86/5,765.58 = 1,996.20/x
  3. Step 3: Cross multiply
    3,847.86x = 5,765.58 × 1,996.20
  4. Step 4: Simplify right side
    3,847.86x = 11,509,250.80
  5. Step 5: Solve for x
    x = 11,509,250.80/3,847.86
  6. Step 6: Final answer
    x = 2,991.08

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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.