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Finding the Fourth Proportional to 1,722.91, 2,373.91 and 1,198.03

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Solution

The fourth proportional to 1,722.91, 2,373.91 and 1,198.03 is: 1,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.91 : 2,373.91 = 1,198.03 : x
  2. Step 2: Convert to fraction form
    1,722.91/2,373.91 = 1,198.03/x
  3. Step 3: Cross multiply
    1,722.91x = 2,373.91 × 1,198.03
  4. Step 4: Simplify right side
    1,722.91x = 2,844,015.40
  5. Step 5: Solve for x
    x = 2,844,015.40/1,722.91
  6. Step 6: Final answer
    x = 1,650.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.