Home / 3,546.25-5,319.64-1,081.25

Finding the Fourth Proportional to 3,546.25, 5,319.64 and 1,081.25

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Solution

The fourth proportional to 3,546.25, 5,319.64 and 1,081.25 is: 1,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.25 : 5,319.64 = 1,081.25 : x
  2. Step 2: Convert to fraction form
    3,546.25/5,319.64 = 1,081.25/x
  3. Step 3: Cross multiply
    3,546.25x = 5,319.64 × 1,081.25
  4. Step 4: Simplify right side
    3,546.25x = 5,751,855.45
  5. Step 5: Solve for x
    x = 5,751,855.45/3,546.25
  6. Step 6: Final answer
    x = 1,621.96

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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.