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Finding the Fourth Proportional to 1,361.74, 2,042.61 and 374.49

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Solution

The fourth proportional to 1,361.74, 2,042.61 and 374.49 is: 561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.74 : 2,042.61 = 374.49 : x
  2. Step 2: Convert to fraction form
    1,361.74/2,042.61 = 374.49/x
  3. Step 3: Cross multiply
    1,361.74x = 2,042.61 × 374.49
  4. Step 4: Simplify right side
    1,361.74x = 764,930.03
  5. Step 5: Solve for x
    x = 764,930.03/1,361.74
  6. Step 6: Final answer
    x = 561.73

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1.5x scale

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.