Home / 3,894.30-5,837.40-2,136.60

Finding the Fourth Proportional to 3,894.30, 5,837.40 and 2,136.60

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Solution

The fourth proportional to 3,894.30, 5,837.40 and 2,136.60 is: 3,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.30 : 5,837.40 = 2,136.60 : x
  2. Step 2: Convert to fraction form
    3,894.30/5,837.40 = 2,136.60/x
  3. Step 3: Cross multiply
    3,894.30x = 5,837.40 × 2,136.60
  4. Step 4: Simplify right side
    3,894.30x = 12,472,188.84
  5. Step 5: Solve for x
    x = 12,472,188.84/3,894.30
  6. Step 6: Final answer
    x = 3,202.68

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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.