Home / 5,236.96-7,855.44-2,639.28

Finding the Fourth Proportional to 5,236.96, 7,855.44 and 2,639.28

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Solution

The fourth proportional to 5,236.96, 7,855.44 and 2,639.28 is: 3,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.96 : 7,855.44 = 2,639.28 : x
  2. Step 2: Convert to fraction form
    5,236.96/7,855.44 = 2,639.28/x
  3. Step 3: Cross multiply
    5,236.96x = 7,855.44 × 2,639.28
  4. Step 4: Simplify right side
    5,236.96x = 20,732,705.68
  5. Step 5: Solve for x
    x = 20,732,705.68/5,236.96
  6. Step 6: Final answer
    x = 3,958.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.