Home / 3,828.75-5,284.08-2,431.50

Finding the Fourth Proportional to 3,828.75, 5,284.08 and 2,431.50

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Solution

The fourth proportional to 3,828.75, 5,284.08 and 2,431.50 is: 3,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.75 : 5,284.08 = 2,431.50 : x
  2. Step 2: Convert to fraction form
    3,828.75/5,284.08 = 2,431.50/x
  3. Step 3: Cross multiply
    3,828.75x = 5,284.08 × 2,431.50
  4. Step 4: Simplify right side
    3,828.75x = 12,848,240.52
  5. Step 5: Solve for x
    x = 12,848,240.52/3,828.75
  6. Step 6: Final answer
    x = 3,355.73

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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.