Home / 1,723.27-2,379.50-1,198.39

Finding the Fourth Proportional to 1,723.27, 2,379.50 and 1,198.39

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Solution

The fourth proportional to 1,723.27, 2,379.50 and 1,198.39 is: 1,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.27 : 2,379.50 = 1,198.39 : x
  2. Step 2: Convert to fraction form
    1,723.27/2,379.50 = 1,198.39/x
  3. Step 3: Cross multiply
    1,723.27x = 2,379.50 × 1,198.39
  4. Step 4: Simplify right side
    1,723.27x = 2,851,563.01
  5. Step 5: Solve for x
    x = 2,851,563.01/1,723.27
  6. Step 6: Final answer
    x = 1,654.74

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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.