Home / 1,185.30-1,634.85-923.22

Finding the Fourth Proportional to 1,185.30, 1,634.85 and 923.22

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Solution

The fourth proportional to 1,185.30, 1,634.85 and 923.22 is: 1,273.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185.30 : 1,634.85 = 923.22 : x
  2. Step 2: Convert to fraction form
    1,185.30/1,634.85 = 923.22/x
  3. Step 3: Cross multiply
    1,185.30x = 1,634.85 × 923.22
  4. Step 4: Simplify right side
    1,185.30x = 1,509,326.22
  5. Step 5: Solve for x
    x = 1,509,326.22/1,185.30
  6. Step 6: Final answer
    x = 1,273.37

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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.