Home / 1,081.27-1,621.42-533.23

Finding the Fourth Proportional to 1,081.27, 1,621.42 and 533.23

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Solution

The fourth proportional to 1,081.27, 1,621.42 and 533.23 is: 799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.27 : 1,621.42 = 533.23 : x
  2. Step 2: Convert to fraction form
    1,081.27/1,621.42 = 533.23/x
  3. Step 3: Cross multiply
    1,081.27x = 1,621.42 × 533.23
  4. Step 4: Simplify right side
    1,081.27x = 864,593.52
  5. Step 5: Solve for x
    x = 864,593.52/1,081.27
  6. Step 6: Final answer
    x = 799.61

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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.