Home / 3,896.20-5,376.72-2,403.52

Finding the Fourth Proportional to 3,896.20, 5,376.72 and 2,403.52

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Solution

The fourth proportional to 3,896.20, 5,376.72 and 2,403.52 is: 3,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.20 : 5,376.72 = 2,403.52 : x
  2. Step 2: Convert to fraction form
    3,896.20/5,376.72 = 2,403.52/x
  3. Step 3: Cross multiply
    3,896.20x = 5,376.72 × 2,403.52
  4. Step 4: Simplify right side
    3,896.20x = 12,923,054.05
  5. Step 5: Solve for x
    x = 12,923,054.05/3,896.20
  6. Step 6: Final answer
    x = 3,316.84

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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.