Home / 3,558.84-5,338.34-1,221.54

Finding the Fourth Proportional to 3,558.84, 5,338.34 and 1,221.54

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Solution

The fourth proportional to 3,558.84, 5,338.34 and 1,221.54 is: 1,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.84 : 5,338.34 = 1,221.54 : x
  2. Step 2: Convert to fraction form
    3,558.84/5,338.34 = 1,221.54/x
  3. Step 3: Cross multiply
    3,558.84x = 5,338.34 × 1,221.54
  4. Step 4: Simplify right side
    3,558.84x = 6,520,989.31
  5. Step 5: Solve for x
    x = 6,520,989.31/3,558.84
  6. Step 6: Final answer
    x = 1,832.33

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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.