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Finding the Fourth Proportional to 1,323.19, 1,825.32 and 850.96

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Solution

The fourth proportional to 1,323.19, 1,825.32 and 850.96 is: 1,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.19 : 1,825.32 = 850.96 : x
  2. Step 2: Convert to fraction form
    1,323.19/1,825.32 = 850.96/x
  3. Step 3: Cross multiply
    1,323.19x = 1,825.32 × 850.96
  4. Step 4: Simplify right side
    1,323.19x = 1,553,274.31
  5. Step 5: Solve for x
    x = 1,553,274.31/1,323.19
  6. Step 6: Final answer
    x = 1,173.89

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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.