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Finding the Fourth Proportional to 2,302.40, 3,453.57 and 636.55

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Solution

The fourth proportional to 2,302.40, 3,453.57 and 636.55 is: 954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.40 : 3,453.57 = 636.55 : x
  2. Step 2: Convert to fraction form
    2,302.40/3,453.57 = 636.55/x
  3. Step 3: Cross multiply
    2,302.40x = 3,453.57 × 636.55
  4. Step 4: Simplify right side
    2,302.40x = 2,198,361.35
  5. Step 5: Solve for x
    x = 2,198,361.35/2,302.40
  6. Step 6: Final answer
    x = 954.81

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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.