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Finding the Fourth Proportional to 7,081.93, 9,772.40 and 3,895.23

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Solution

The fourth proportional to 7,081.93, 9,772.40 and 3,895.23 is: 5,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.93 : 9,772.40 = 3,895.23 : x
  2. Step 2: Convert to fraction form
    7,081.93/9,772.40 = 3,895.23/x
  3. Step 3: Cross multiply
    7,081.93x = 9,772.40 × 3,895.23
  4. Step 4: Simplify right side
    7,081.93x = 38,065,745.65
  5. Step 5: Solve for x
    x = 38,065,745.65/7,081.93
  6. Step 6: Final answer
    x = 5,375.05

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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.