Home / 5,216.78-7,825.18-1,268.06

Finding the Fourth Proportional to 5,216.78, 7,825.18 and 1,268.06

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Solution

The fourth proportional to 5,216.78, 7,825.18 and 1,268.06 is: 1,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.78 : 7,825.18 = 1,268.06 : x
  2. Step 2: Convert to fraction form
    5,216.78/7,825.18 = 1,268.06/x
  3. Step 3: Cross multiply
    5,216.78x = 7,825.18 × 1,268.06
  4. Step 4: Simplify right side
    5,216.78x = 9,922,797.75
  5. Step 5: Solve for x
    x = 9,922,797.75/5,216.78
  6. Step 6: Final answer
    x = 1,902.09

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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.