Home / 1,936.19-2,902.79-961.53

Finding the Fourth Proportional to 1,936.19, 2,902.79 and 961.53

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Solution

The fourth proportional to 1,936.19, 2,902.79 and 961.53 is: 1,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.19 : 2,902.79 = 961.53 : x
  2. Step 2: Convert to fraction form
    1,936.19/2,902.79 = 961.53/x
  3. Step 3: Cross multiply
    1,936.19x = 2,902.79 × 961.53
  4. Step 4: Simplify right side
    1,936.19x = 2,791,114.86
  5. Step 5: Solve for x
    x = 2,791,114.86/1,936.19
  6. Step 6: Final answer
    x = 1,441.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.