Home / 3,828.94-5,283.89-2,150.31

Finding the Fourth Proportional to 3,828.94, 5,283.89 and 2,150.31

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Solution

The fourth proportional to 3,828.94, 5,283.89 and 2,150.31 is: 2,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.94 : 5,283.89 = 2,150.31 : x
  2. Step 2: Convert to fraction form
    3,828.94/5,283.89 = 2,150.31/x
  3. Step 3: Cross multiply
    3,828.94x = 5,283.89 × 2,150.31
  4. Step 4: Simplify right side
    3,828.94x = 11,361,987.07
  5. Step 5: Solve for x
    x = 11,361,987.07/3,828.94
  6. Step 6: Final answer
    x = 2,967.40

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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.