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Finding the Fourth Proportional to 681.89, 941.01 and 371.39

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Solution

The fourth proportional to 681.89, 941.01 and 371.39 is: 512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.89 : 941.01 = 371.39 : x
  2. Step 2: Convert to fraction form
    681.89/941.01 = 371.39/x
  3. Step 3: Cross multiply
    681.89x = 941.01 × 371.39
  4. Step 4: Simplify right side
    681.89x = 349,481.70
  5. Step 5: Solve for x
    x = 349,481.70/681.89
  6. Step 6: Final answer
    x = 512.52

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Half scale
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Double scale
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1.5x scale

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.