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Finding the Fourth Proportional to 1,374.55, 1,897.25 and 850.29

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Solution

The fourth proportional to 1,374.55, 1,897.25 and 850.29 is: 1,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.55 : 1,897.25 = 850.29 : x
  2. Step 2: Convert to fraction form
    1,374.55/1,897.25 = 850.29/x
  3. Step 3: Cross multiply
    1,374.55x = 1,897.25 × 850.29
  4. Step 4: Simplify right side
    1,374.55x = 1,613,212.70
  5. Step 5: Solve for x
    x = 1,613,212.70/1,374.55
  6. Step 6: Final answer
    x = 1,173.63

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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.