Home / 3,453.07-5,179.79-1,112.90

Finding the Fourth Proportional to 3,453.07, 5,179.79 and 1,112.90

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Solution

The fourth proportional to 3,453.07, 5,179.79 and 1,112.90 is: 1,669.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.07 : 5,179.79 = 1,112.90 : x
  2. Step 2: Convert to fraction form
    3,453.07/5,179.79 = 1,112.90/x
  3. Step 3: Cross multiply
    3,453.07x = 5,179.79 × 1,112.90
  4. Step 4: Simplify right side
    3,453.07x = 5,764,585.51
  5. Step 5: Solve for x
    x = 5,764,585.51/3,453.07
  6. Step 6: Final answer
    x = 1,669.41

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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.