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Finding the Fourth Proportional to 682.60, 956.60 and 682.60

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Solution

The fourth proportional to 682.60, 956.60 and 682.60 is: 956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.60 : 956.60 = 682.60 : x
  2. Step 2: Convert to fraction form
    682.60/956.60 = 682.60/x
  3. Step 3: Cross multiply
    682.60x = 956.60 × 682.60
  4. Step 4: Simplify right side
    682.60x = 652,975.16
  5. Step 5: Solve for x
    x = 652,975.16/682.60
  6. Step 6: Final answer
    x = 956.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.