Home / 7,177.27-10,745.85-3,878.55

Finding the Fourth Proportional to 7,177.27, 10,745.85 and 3,878.55

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Solution

The fourth proportional to 7,177.27, 10,745.85 and 3,878.55 is: 5,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.27 : 10,745.85 = 3,878.55 : x
  2. Step 2: Convert to fraction form
    7,177.27/10,745.85 = 3,878.55/x
  3. Step 3: Cross multiply
    7,177.27x = 10,745.85 × 3,878.55
  4. Step 4: Simplify right side
    7,177.27x = 41,678,316.52
  5. Step 5: Solve for x
    x = 41,678,316.52/7,177.27
  6. Step 6: Final answer
    x = 5,806.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.