Home / 6,839.26-9,438.69-3,855.37

Finding the Fourth Proportional to 6,839.26, 9,438.69 and 3,855.37

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Solution

The fourth proportional to 6,839.26, 9,438.69 and 3,855.37 is: 5,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.26 : 9,438.69 = 3,855.37 : x
  2. Step 2: Convert to fraction form
    6,839.26/9,438.69 = 3,855.37/x
  3. Step 3: Cross multiply
    6,839.26x = 9,438.69 × 3,855.37
  4. Step 4: Simplify right side
    6,839.26x = 36,389,642.27
  5. Step 5: Solve for x
    x = 36,389,642.27/6,839.26
  6. Step 6: Final answer
    x = 5,320.70

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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.