Home / 7,884.38-11,829.39-3,379.55

Finding the Fourth Proportional to 7,884.38, 11,829.39 and 3,379.55

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Solution

The fourth proportional to 7,884.38, 11,829.39 and 3,379.55 is: 5,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.38 : 11,829.39 = 3,379.55 : x
  2. Step 2: Convert to fraction form
    7,884.38/11,829.39 = 3,379.55/x
  3. Step 3: Cross multiply
    7,884.38x = 11,829.39 × 3,379.55
  4. Step 4: Simplify right side
    7,884.38x = 39,977,955.83
  5. Step 5: Solve for x
    x = 39,977,955.83/7,884.38
  6. Step 6: Final answer
    x = 5,070.53

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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.