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Finding the Fourth Proportional to 1,361.99, 2,043.26 and 484.49

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Solution

The fourth proportional to 1,361.99, 2,043.26 and 484.49 is: 726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.99 : 2,043.26 = 484.49 : x
  2. Step 2: Convert to fraction form
    1,361.99/2,043.26 = 484.49/x
  3. Step 3: Cross multiply
    1,361.99x = 2,043.26 × 484.49
  4. Step 4: Simplify right side
    1,361.99x = 989,926.40
  5. Step 5: Solve for x
    x = 989,926.40/1,361.99
  6. Step 6: Final answer
    x = 726.83

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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.