Home / 7,022.26-9,690.24-3,878.56

Finding the Fourth Proportional to 7,022.26, 9,690.24 and 3,878.56

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Solution

The fourth proportional to 7,022.26, 9,690.24 and 3,878.56 is: 5,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.26 : 9,690.24 = 3,878.56 : x
  2. Step 2: Convert to fraction form
    7,022.26/9,690.24 = 3,878.56/x
  3. Step 3: Cross multiply
    7,022.26x = 9,690.24 × 3,878.56
  4. Step 4: Simplify right side
    7,022.26x = 37,584,177.25
  5. Step 5: Solve for x
    x = 37,584,177.25/7,022.26
  6. Step 6: Final answer
    x = 5,352.15

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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.