Home / 6,619.88-9,135.44-3,825.38

Finding the Fourth Proportional to 6,619.88, 9,135.44 and 3,825.38

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Solution

The fourth proportional to 6,619.88, 9,135.44 and 3,825.38 is: 5,279.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.88 : 9,135.44 = 3,825.38 : x
  2. Step 2: Convert to fraction form
    6,619.88/9,135.44 = 3,825.38/x
  3. Step 3: Cross multiply
    6,619.88x = 9,135.44 × 3,825.38
  4. Step 4: Simplify right side
    6,619.88x = 34,946,464.66
  5. Step 5: Solve for x
    x = 34,946,464.66/6,619.88
  6. Step 6: Final answer
    x = 5,279.02

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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.