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Finding the Fourth Proportional to 1,775.94, 2,664.25 and 850.87

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Solution

The fourth proportional to 1,775.94, 2,664.25 and 850.87 is: 1,276.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.94 : 2,664.25 = 850.87 : x
  2. Step 2: Convert to fraction form
    1,775.94/2,664.25 = 850.87/x
  3. Step 3: Cross multiply
    1,775.94x = 2,664.25 × 850.87
  4. Step 4: Simplify right side
    1,775.94x = 2,266,930.40
  5. Step 5: Solve for x
    x = 2,266,930.40/1,775.94
  6. Step 6: Final answer
    x = 1,276.47

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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.