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Finding the Fourth Proportional to 1,716.75, 2,571.03 and 984.15

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Solution

The fourth proportional to 1,716.75, 2,571.03 and 984.15 is: 1,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.75 : 2,571.03 = 984.15 : x
  2. Step 2: Convert to fraction form
    1,716.75/2,571.03 = 984.15/x
  3. Step 3: Cross multiply
    1,716.75x = 2,571.03 × 984.15
  4. Step 4: Simplify right side
    1,716.75x = 2,530,279.17
  5. Step 5: Solve for x
    x = 2,530,279.17/1,716.75
  6. Step 6: Final answer
    x = 1,473.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.