Home / 1,936.14-2,904.84-1,318.92

Finding the Fourth Proportional to 1,936.14, 2,904.84 and 1,318.92

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Solution

The fourth proportional to 1,936.14, 2,904.84 and 1,318.92 is: 1,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.14 : 2,904.84 = 1,318.92 : x
  2. Step 2: Convert to fraction form
    1,936.14/2,904.84 = 1,318.92/x
  3. Step 3: Cross multiply
    1,936.14x = 2,904.84 × 1,318.92
  4. Step 4: Simplify right side
    1,936.14x = 3,831,251.57
  5. Step 5: Solve for x
    x = 3,831,251.57/1,936.14
  6. Step 6: Final answer
    x = 1,978.81

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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.