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Finding the Fourth Proportional to 850.63, 1,173 and 801.02

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Solution

The fourth proportional to 850.63, 1,173 and 801.02 is: 1,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.63 : 1,173 = 801.02 : x
  2. Step 2: Convert to fraction form
    850.63/1,173 = 801.02/x
  3. Step 3: Cross multiply
    850.63x = 1,173 × 801.02
  4. Step 4: Simplify right side
    850.63x = 939,594.99
  5. Step 5: Solve for x
    x = 939,594.99/850.63
  6. Step 6: Final answer
    x = 1,104.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.