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Finding the Fourth Proportional to 1,775.08, 2,660.38 and 850.60

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Solution

The fourth proportional to 1,775.08, 2,660.38 and 850.60 is: 1,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.08 : 2,660.38 = 850.60 : x
  2. Step 2: Convert to fraction form
    1,775.08/2,660.38 = 850.60/x
  3. Step 3: Cross multiply
    1,775.08x = 2,660.38 × 850.60
  4. Step 4: Simplify right side
    1,775.08x = 2,262,919.23
  5. Step 5: Solve for x
    x = 2,262,919.23/1,775.08
  6. Step 6: Final answer
    x = 1,274.83

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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.