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Finding the Fourth Proportional to 682.51, 941.85 and 372.01

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Solution

The fourth proportional to 682.51, 941.85 and 372.01 is: 513.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.51 : 941.85 = 372.01 : x
  2. Step 2: Convert to fraction form
    682.51/941.85 = 372.01/x
  3. Step 3: Cross multiply
    682.51x = 941.85 × 372.01
  4. Step 4: Simplify right side
    682.51x = 350,375.76
  5. Step 5: Solve for x
    x = 350,375.76/682.51
  6. Step 6: Final answer
    x = 513.36

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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.