Home / 3,904.83-5,388.42-2,136.39

Finding the Fourth Proportional to 3,904.83, 5,388.42 and 2,136.39

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Solution

The fourth proportional to 3,904.83, 5,388.42 and 2,136.39 is: 2,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.83 : 5,388.42 = 2,136.39 : x
  2. Step 2: Convert to fraction form
    3,904.83/5,388.42 = 2,136.39/x
  3. Step 3: Cross multiply
    3,904.83x = 5,388.42 × 2,136.39
  4. Step 4: Simplify right side
    3,904.83x = 11,511,766.60
  5. Step 5: Solve for x
    x = 11,511,766.60/3,904.83
  6. Step 6: Final answer
    x = 2,948.08

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1.5x scale

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.