Home / 1,936.35-2,672.55-1,190.66

Finding the Fourth Proportional to 1,936.35, 2,672.55 and 1,190.66

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Solution

The fourth proportional to 1,936.35, 2,672.55 and 1,190.66 is: 1,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.35 : 2,672.55 = 1,190.66 : x
  2. Step 2: Convert to fraction form
    1,936.35/2,672.55 = 1,190.66/x
  3. Step 3: Cross multiply
    1,936.35x = 2,672.55 × 1,190.66
  4. Step 4: Simplify right side
    1,936.35x = 3,182,085.02
  5. Step 5: Solve for x
    x = 3,182,085.02/1,936.35
  6. Step 6: Final answer
    x = 1,643.34

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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.