Home / 3,991.50-5,977.96-3,853.08

Finding the Fourth Proportional to 3,991.50, 5,977.96 and 3,853.08

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Solution

The fourth proportional to 3,991.50, 5,977.96 and 3,853.08 is: 5,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.50 : 5,977.96 = 3,853.08 : x
  2. Step 2: Convert to fraction form
    3,991.50/5,977.96 = 3,853.08/x
  3. Step 3: Cross multiply
    3,991.50x = 5,977.96 × 3,853.08
  4. Step 4: Simplify right side
    3,991.50x = 23,033,558.12
  5. Step 5: Solve for x
    x = 23,033,558.12/3,991.50
  6. Step 6: Final answer
    x = 5,770.65

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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.