Home / 3,836.31-5,293.74-2,157.33

Finding the Fourth Proportional to 3,836.31, 5,293.74 and 2,157.33

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Solution

The fourth proportional to 3,836.31, 5,293.74 and 2,157.33 is: 2,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.31 : 5,293.74 = 2,157.33 : x
  2. Step 2: Convert to fraction form
    3,836.31/5,293.74 = 2,157.33/x
  3. Step 3: Cross multiply
    3,836.31x = 5,293.74 × 2,157.33
  4. Step 4: Simplify right side
    3,836.31x = 11,420,344.11
  5. Step 5: Solve for x
    x = 11,420,344.11/3,836.31
  6. Step 6: Final answer
    x = 2,976.91

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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.