Home / 3,546.30-5,319.66-1,081.20

Finding the Fourth Proportional to 3,546.30, 5,319.66 and 1,081.20

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Solution

The fourth proportional to 3,546.30, 5,319.66 and 1,081.20 is: 1,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.30 : 5,319.66 = 1,081.20 : x
  2. Step 2: Convert to fraction form
    3,546.30/5,319.66 = 1,081.20/x
  3. Step 3: Cross multiply
    3,546.30x = 5,319.66 × 1,081.20
  4. Step 4: Simplify right side
    3,546.30x = 5,751,616.39
  5. Step 5: Solve for x
    x = 5,751,616.39/3,546.30
  6. Step 6: Final answer
    x = 1,621.86

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1.5x scale

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.