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Finding the Fourth Proportional to 7,277.44, 10,915.10 and 3,578.68

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Solution

The fourth proportional to 7,277.44, 10,915.10 and 3,578.68 is: 5,367.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,277.44 : 10,915.10 = 3,578.68 : x
  2. Step 2: Convert to fraction form
    7,277.44/10,915.10 = 3,578.68/x
  3. Step 3: Cross multiply
    7,277.44x = 10,915.10 × 3,578.68
  4. Step 4: Simplify right side
    7,277.44x = 39,061,577.60
  5. Step 5: Solve for x
    x = 39,061,577.60/7,277.44
  6. Step 6: Final answer
    x = 5,367.49

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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.