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Finding the Fourth Proportional to 1,838.53, 2,757.94 and 522.26

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Solution

The fourth proportional to 1,838.53, 2,757.94 and 522.26 is: 783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.53 : 2,757.94 = 522.26 : x
  2. Step 2: Convert to fraction form
    1,838.53/2,757.94 = 522.26/x
  3. Step 3: Cross multiply
    1,838.53x = 2,757.94 × 522.26
  4. Step 4: Simplify right side
    1,838.53x = 1,440,369.29
  5. Step 5: Solve for x
    x = 1,440,369.29/1,838.53
  6. Step 6: Final answer
    x = 783.43

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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.