Home / 7,112.80-10,670.46-3,412.54

Finding the Fourth Proportional to 7,112.80, 10,670.46 and 3,412.54

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Solution

The fourth proportional to 7,112.80, 10,670.46 and 3,412.54 is: 5,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.80 : 10,670.46 = 3,412.54 : x
  2. Step 2: Convert to fraction form
    7,112.80/10,670.46 = 3,412.54/x
  3. Step 3: Cross multiply
    7,112.80x = 10,670.46 × 3,412.54
  4. Step 4: Simplify right side
    7,112.80x = 36,413,371.57
  5. Step 5: Solve for x
    x = 36,413,371.57/7,112.80
  6. Step 6: Final answer
    x = 5,119.41

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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.