Home / 1,198.10-1,653.23-674.03

Finding the Fourth Proportional to 1,198.10, 1,653.23 and 674.03

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Solution

The fourth proportional to 1,198.10, 1,653.23 and 674.03 is: 930.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.10 : 1,653.23 = 674.03 : x
  2. Step 2: Convert to fraction form
    1,198.10/1,653.23 = 674.03/x
  3. Step 3: Cross multiply
    1,198.10x = 1,653.23 × 674.03
  4. Step 4: Simplify right side
    1,198.10x = 1,114,323.25
  5. Step 5: Solve for x
    x = 1,114,323.25/1,198.10
  6. Step 6: Final answer
    x = 930.08

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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.