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Finding the Fourth Proportional to 1,021.37, 1,532.25 and 371.97

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Solution

The fourth proportional to 1,021.37, 1,532.25 and 371.97 is: 558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021.37 : 1,532.25 = 371.97 : x
  2. Step 2: Convert to fraction form
    1,021.37/1,532.25 = 371.97/x
  3. Step 3: Cross multiply
    1,021.37x = 1,532.25 × 371.97
  4. Step 4: Simplify right side
    1,021.37x = 569,951.03
  5. Step 5: Solve for x
    x = 569,951.03/1,021.37
  6. Step 6: Final answer
    x = 558.03

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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.