Home / 7,868.37-11,804.58-2,938.05

Finding the Fourth Proportional to 7,868.37, 11,804.58 and 2,938.05

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Solution

The fourth proportional to 7,868.37, 11,804.58 and 2,938.05 is: 4,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.37 : 11,804.58 = 2,938.05 : x
  2. Step 2: Convert to fraction form
    7,868.37/11,804.58 = 2,938.05/x
  3. Step 3: Cross multiply
    7,868.37x = 11,804.58 × 2,938.05
  4. Step 4: Simplify right side
    7,868.37x = 34,682,446.27
  5. Step 5: Solve for x
    x = 34,682,446.27/7,868.37
  6. Step 6: Final answer
    x = 4,407.83

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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.