Home / 5,112.12-7,668.81-1,825.56

Finding the Fourth Proportional to 5,112.12, 7,668.81 and 1,825.56

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Solution

The fourth proportional to 5,112.12, 7,668.81 and 1,825.56 is: 2,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.12 : 7,668.81 = 1,825.56 : x
  2. Step 2: Convert to fraction form
    5,112.12/7,668.81 = 1,825.56/x
  3. Step 3: Cross multiply
    5,112.12x = 7,668.81 × 1,825.56
  4. Step 4: Simplify right side
    5,112.12x = 13,999,872.78
  5. Step 5: Solve for x
    x = 13,999,872.78/5,112.12
  6. Step 6: Final answer
    x = 2,738.56

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1.5x scale

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.