Home / 3,860.75-5,328.44-2,288.54

Finding the Fourth Proportional to 3,860.75, 5,328.44 and 2,288.54

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Solution

The fourth proportional to 3,860.75, 5,328.44 and 2,288.54 is: 3,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.75 : 5,328.44 = 2,288.54 : x
  2. Step 2: Convert to fraction form
    3,860.75/5,328.44 = 2,288.54/x
  3. Step 3: Cross multiply
    3,860.75x = 5,328.44 × 2,288.54
  4. Step 4: Simplify right side
    3,860.75x = 12,194,348.08
  5. Step 5: Solve for x
    x = 12,194,348.08/3,860.75
  6. Step 6: Final answer
    x = 3,158.54

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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.