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Finding the Fourth Proportional to 1,821.97, 2,733.36 and 589.42

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Solution

The fourth proportional to 1,821.97, 2,733.36 and 589.42 is: 884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.97 : 2,733.36 = 589.42 : x
  2. Step 2: Convert to fraction form
    1,821.97/2,733.36 = 589.42/x
  3. Step 3: Cross multiply
    1,821.97x = 2,733.36 × 589.42
  4. Step 4: Simplify right side
    1,821.97x = 1,611,097.05
  5. Step 5: Solve for x
    x = 1,611,097.05/1,821.97
  6. Step 6: Final answer
    x = 884.26

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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.