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Finding the Fourth Proportional to 1,295.48, 1,944.21 and 949.70

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Solution

The fourth proportional to 1,295.48, 1,944.21 and 949.70 is: 1,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.48 : 1,944.21 = 949.70 : x
  2. Step 2: Convert to fraction form
    1,295.48/1,944.21 = 949.70/x
  3. Step 3: Cross multiply
    1,295.48x = 1,944.21 × 949.70
  4. Step 4: Simplify right side
    1,295.48x = 1,846,408.38
  5. Step 5: Solve for x
    x = 1,846,408.38/1,295.48
  6. Step 6: Final answer
    x = 1,425.27

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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.