Home / 3,847.19-5,768.72-1,993.70

Finding the Fourth Proportional to 3,847.19, 5,768.72 and 1,993.70

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Solution

The fourth proportional to 3,847.19, 5,768.72 and 1,993.70 is: 2,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.19 : 5,768.72 = 1,993.70 : x
  2. Step 2: Convert to fraction form
    3,847.19/5,768.72 = 1,993.70/x
  3. Step 3: Cross multiply
    3,847.19x = 5,768.72 × 1,993.70
  4. Step 4: Simplify right side
    3,847.19x = 11,501,116.47
  5. Step 5: Solve for x
    x = 11,501,116.47/3,847.19
  6. Step 6: Final answer
    x = 2,989.49

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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.