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Finding the Fourth Proportional to 1,821.94, 2,732.91 and 523.51

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Solution

The fourth proportional to 1,821.94, 2,732.91 and 523.51 is: 785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.94 : 2,732.91 = 523.51 : x
  2. Step 2: Convert to fraction form
    1,821.94/2,732.91 = 523.51/x
  3. Step 3: Cross multiply
    1,821.94x = 2,732.91 × 523.51
  4. Step 4: Simplify right side
    1,821.94x = 1,430,696.92
  5. Step 5: Solve for x
    x = 1,430,696.92/1,821.94
  6. Step 6: Final answer
    x = 785.26

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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.