Home / 5,217.18-7,825.77-1,268.42

Finding the Fourth Proportional to 5,217.18, 7,825.77 and 1,268.42

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Solution

The fourth proportional to 5,217.18, 7,825.77 and 1,268.42 is: 1,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.18 : 7,825.77 = 1,268.42 : x
  2. Step 2: Convert to fraction form
    5,217.18/7,825.77 = 1,268.42/x
  3. Step 3: Cross multiply
    5,217.18x = 7,825.77 × 1,268.42
  4. Step 4: Simplify right side
    5,217.18x = 9,926,324.05
  5. Step 5: Solve for x
    x = 9,926,324.05/5,217.18
  6. Step 6: Final answer
    x = 1,902.62

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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.