Home / 3,826.37-5,280.65-2,147.92

Finding the Fourth Proportional to 3,826.37, 5,280.65 and 2,147.92

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Solution

The fourth proportional to 3,826.37, 5,280.65 and 2,147.92 is: 2,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.37 : 5,280.65 = 2,147.92 : x
  2. Step 2: Convert to fraction form
    3,826.37/5,280.65 = 2,147.92/x
  3. Step 3: Cross multiply
    3,826.37x = 5,280.65 × 2,147.92
  4. Step 4: Simplify right side
    3,826.37x = 11,342,413.75
  5. Step 5: Solve for x
    x = 11,342,413.75/3,826.37
  6. Step 6: Final answer
    x = 2,964.28

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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.