Home / 1,081.05-1,621.77-350.64

Finding the Fourth Proportional to 1,081.05, 1,621.77 and 350.64

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Solution

The fourth proportional to 1,081.05, 1,621.77 and 350.64 is: 526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.05 : 1,621.77 = 350.64 : x
  2. Step 2: Convert to fraction form
    1,081.05/1,621.77 = 350.64/x
  3. Step 3: Cross multiply
    1,081.05x = 1,621.77 × 350.64
  4. Step 4: Simplify right side
    1,081.05x = 568,657.43
  5. Step 5: Solve for x
    x = 568,657.43/1,081.05
  6. Step 6: Final answer
    x = 526.02

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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.