Home / 7,115.43-10,674.73-2,185.57

Finding the Fourth Proportional to 7,115.43, 10,674.73 and 2,185.57

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Solution

The fourth proportional to 7,115.43, 10,674.73 and 2,185.57 is: 3,278.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.43 : 10,674.73 = 2,185.57 : x
  2. Step 2: Convert to fraction form
    7,115.43/10,674.73 = 2,185.57/x
  3. Step 3: Cross multiply
    7,115.43x = 10,674.73 × 2,185.57
  4. Step 4: Simplify right side
    7,115.43x = 23,330,305.34
  5. Step 5: Solve for x
    x = 23,330,305.34/7,115.43
  6. Step 6: Final answer
    x = 3,278.84

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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.