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Finding the Fourth Proportional to 3,796.56, 5,239.44 and 2,118.12

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Solution

The fourth proportional to 3,796.56, 5,239.44 and 2,118.12 is: 2,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.56 : 5,239.44 = 2,118.12 : x
  2. Step 2: Convert to fraction form
    3,796.56/5,239.44 = 2,118.12/x
  3. Step 3: Cross multiply
    3,796.56x = 5,239.44 × 2,118.12
  4. Step 4: Simplify right side
    3,796.56x = 11,097,762.65
  5. Step 5: Solve for x
    x = 11,097,762.65/3,796.56
  6. Step 6: Final answer
    x = 2,923.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.