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Finding the Fourth Proportional to 1,682.67, 2,322.08 and 984.03

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Solution

The fourth proportional to 1,682.67, 2,322.08 and 984.03 is: 1,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.67 : 2,322.08 = 984.03 : x
  2. Step 2: Convert to fraction form
    1,682.67/2,322.08 = 984.03/x
  3. Step 3: Cross multiply
    1,682.67x = 2,322.08 × 984.03
  4. Step 4: Simplify right side
    1,682.67x = 2,284,991.46
  5. Step 5: Solve for x
    x = 2,284,991.46/1,682.67
  6. Step 6: Final answer
    x = 1,357.96

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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.