Home / 1,190.25-1,645.56-1,107.63

Finding the Fourth Proportional to 1,190.25, 1,645.56 and 1,107.63

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Solution

The fourth proportional to 1,190.25, 1,645.56 and 1,107.63 is: 1,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.25 : 1,645.56 = 1,107.63 : x
  2. Step 2: Convert to fraction form
    1,190.25/1,645.56 = 1,107.63/x
  3. Step 3: Cross multiply
    1,190.25x = 1,645.56 × 1,107.63
  4. Step 4: Simplify right side
    1,190.25x = 1,822,671.62
  5. Step 5: Solve for x
    x = 1,822,671.62/1,190.25
  6. Step 6: Final answer
    x = 1,531.34

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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.