Home / 1,936.50-2,673.75-1,191.45

Finding the Fourth Proportional to 1,936.50, 2,673.75 and 1,191.45

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Solution

The fourth proportional to 1,936.50, 2,673.75 and 1,191.45 is: 1,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.50 : 2,673.75 = 1,191.45 : x
  2. Step 2: Convert to fraction form
    1,936.50/2,673.75 = 1,191.45/x
  3. Step 3: Cross multiply
    1,936.50x = 2,673.75 × 1,191.45
  4. Step 4: Simplify right side
    1,936.50x = 3,185,639.44
  5. Step 5: Solve for x
    x = 3,185,639.44/1,936.50
  6. Step 6: Final answer
    x = 1,645.05

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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.