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Finding the Fourth Proportional to 5,172.76, 7,759.14 and 2,250.38

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Solution

The fourth proportional to 5,172.76, 7,759.14 and 2,250.38 is: 3,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.76 : 7,759.14 = 2,250.38 : x
  2. Step 2: Convert to fraction form
    5,172.76/7,759.14 = 2,250.38/x
  3. Step 3: Cross multiply
    5,172.76x = 7,759.14 × 2,250.38
  4. Step 4: Simplify right side
    5,172.76x = 17,461,037.09
  5. Step 5: Solve for x
    x = 17,461,037.09/5,172.76
  6. Step 6: Final answer
    x = 3,375.57

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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.