Home / 1,198.02-1,653.30-674.07

Finding the Fourth Proportional to 1,198.02, 1,653.30 and 674.07

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Solution

The fourth proportional to 1,198.02, 1,653.30 and 674.07 is: 930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.02 : 1,653.30 = 674.07 : x
  2. Step 2: Convert to fraction form
    1,198.02/1,653.30 = 674.07/x
  3. Step 3: Cross multiply
    1,198.02x = 1,653.30 × 674.07
  4. Step 4: Simplify right side
    1,198.02x = 1,114,439.93
  5. Step 5: Solve for x
    x = 1,114,439.93/1,198.02
  6. Step 6: Final answer
    x = 930.23

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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.