Home / 6,840.14-9,439.41-3,855.98

Finding the Fourth Proportional to 6,840.14, 9,439.41 and 3,855.98

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Solution

The fourth proportional to 6,840.14, 9,439.41 and 3,855.98 is: 5,321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.14 : 9,439.41 = 3,855.98 : x
  2. Step 2: Convert to fraction form
    6,840.14/9,439.41 = 3,855.98/x
  3. Step 3: Cross multiply
    6,840.14x = 9,439.41 × 3,855.98
  4. Step 4: Simplify right side
    6,840.14x = 36,398,176.17
  5. Step 5: Solve for x
    x = 36,398,176.17/6,840.14
  6. Step 6: Final answer
    x = 5,321.26

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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.