Home / 3,828.19-5,282.86-2,149.55

Finding the Fourth Proportional to 3,828.19, 5,282.86 and 2,149.55

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Solution

The fourth proportional to 3,828.19, 5,282.86 and 2,149.55 is: 2,966.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.19 : 5,282.86 = 2,149.55 : x
  2. Step 2: Convert to fraction form
    3,828.19/5,282.86 = 2,149.55/x
  3. Step 3: Cross multiply
    3,828.19x = 5,282.86 × 2,149.55
  4. Step 4: Simplify right side
    3,828.19x = 11,355,787.44
  5. Step 5: Solve for x
    x = 11,355,787.44/3,828.19
  6. Step 6: Final answer
    x = 2,966.36

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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.