Home / 3,546.05-5,319.81-1,081.06

Finding the Fourth Proportional to 3,546.05, 5,319.81 and 1,081.06

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Solution

The fourth proportional to 3,546.05, 5,319.81 and 1,081.06 is: 1,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.05 : 5,319.81 = 1,081.06 : x
  2. Step 2: Convert to fraction form
    3,546.05/5,319.81 = 1,081.06/x
  3. Step 3: Cross multiply
    3,546.05x = 5,319.81 × 1,081.06
  4. Step 4: Simplify right side
    3,546.05x = 5,751,020.50
  5. Step 5: Solve for x
    x = 5,751,020.50/3,546.05
  6. Step 6: Final answer
    x = 1,621.81

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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.