Home / 3,904.77-5,388.54-2,136.38

Finding the Fourth Proportional to 3,904.77, 5,388.54 and 2,136.38

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Solution

The fourth proportional to 3,904.77, 5,388.54 and 2,136.38 is: 2,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.77 : 5,388.54 = 2,136.38 : x
  2. Step 2: Convert to fraction form
    3,904.77/5,388.54 = 2,136.38/x
  3. Step 3: Cross multiply
    3,904.77x = 5,388.54 × 2,136.38
  4. Step 4: Simplify right side
    3,904.77x = 11,511,946.15
  5. Step 5: Solve for x
    x = 11,511,946.15/3,904.77
  6. Step 6: Final answer
    x = 2,948.17

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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.