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Finding the Fourth Proportional to 1,266.94, 1,900.44 and 377.38

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Solution

The fourth proportional to 1,266.94, 1,900.44 and 377.38 is: 566.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.94 : 1,900.44 = 377.38 : x
  2. Step 2: Convert to fraction form
    1,266.94/1,900.44 = 377.38/x
  3. Step 3: Cross multiply
    1,266.94x = 1,900.44 × 377.38
  4. Step 4: Simplify right side
    1,266.94x = 717,183.30
  5. Step 5: Solve for x
    x = 717,183.30/1,266.94
  6. Step 6: Final answer
    x = 566.08

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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.