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Finding the Fourth Proportional to 1,634.95, 2,450.03 and 757.72

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Solution

The fourth proportional to 1,634.95, 2,450.03 and 757.72 is: 1,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.95 : 2,450.03 = 757.72 : x
  2. Step 2: Convert to fraction form
    1,634.95/2,450.03 = 757.72/x
  3. Step 3: Cross multiply
    1,634.95x = 2,450.03 × 757.72
  4. Step 4: Simplify right side
    1,634.95x = 1,856,424.48
  5. Step 5: Solve for x
    x = 1,856,424.48/1,634.95
  6. Step 6: Final answer
    x = 1,135.47

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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.