Home / 5,481.81-8,216.84-3,917.07

Finding the Fourth Proportional to 5,481.81, 8,216.84 and 3,917.07

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Solution

The fourth proportional to 5,481.81, 8,216.84 and 3,917.07 is: 5,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.81 : 8,216.84 = 3,917.07 : x
  2. Step 2: Convert to fraction form
    5,481.81/8,216.84 = 3,917.07/x
  3. Step 3: Cross multiply
    5,481.81x = 8,216.84 × 3,917.07
  4. Step 4: Simplify right side
    5,481.81x = 32,185,924.14
  5. Step 5: Solve for x
    x = 32,185,924.14/5,481.81
  6. Step 6: Final answer
    x = 5,871.40

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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.