Home / 3,904.97-5,388.74-2,136.46

Finding the Fourth Proportional to 3,904.97, 5,388.74 and 2,136.46

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Solution

The fourth proportional to 3,904.97, 5,388.74 and 2,136.46 is: 2,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.97 : 5,388.74 = 2,136.46 : x
  2. Step 2: Convert to fraction form
    3,904.97/5,388.74 = 2,136.46/x
  3. Step 3: Cross multiply
    3,904.97x = 5,388.74 × 2,136.46
  4. Step 4: Simplify right side
    3,904.97x = 11,512,816.78
  5. Step 5: Solve for x
    x = 11,512,816.78/3,904.97
  6. Step 6: Final answer
    x = 2,948.25

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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.