Home / 3,923-5,886.66-1,871

Finding the Fourth Proportional to 3,923, 5,886.66 and 1,871

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Solution

The fourth proportional to 3,923, 5,886.66 and 1,871 is: 2,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923 : 5,886.66 = 1,871 : x
  2. Step 2: Convert to fraction form
    3,923/5,886.66 = 1,871/x
  3. Step 3: Cross multiply
    3,923x = 5,886.66 × 1,871
  4. Step 4: Simplify right side
    3,923x = 11,013,940.86
  5. Step 5: Solve for x
    x = 11,013,940.86/3,923
  6. Step 6: Final answer
    x = 2,807.53

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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.