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Finding the Fourth Proportional to 2,112.24, 3,168.36 and 573.24

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Solution

The fourth proportional to 2,112.24, 3,168.36 and 573.24 is: 859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.24 : 3,168.36 = 573.24 : x
  2. Step 2: Convert to fraction form
    2,112.24/3,168.36 = 573.24/x
  3. Step 3: Cross multiply
    2,112.24x = 3,168.36 × 573.24
  4. Step 4: Simplify right side
    2,112.24x = 1,816,230.69
  5. Step 5: Solve for x
    x = 1,816,230.69/2,112.24
  6. Step 6: Final answer
    x = 859.86

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Double scale
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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.