Home / 2,749.37-4,125.47-1,107.09

Finding the Fourth Proportional to 2,749.37, 4,125.47 and 1,107.09

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Solution

The fourth proportional to 2,749.37, 4,125.47 and 1,107.09 is: 1,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.37 : 4,125.47 = 1,107.09 : x
  2. Step 2: Convert to fraction form
    2,749.37/4,125.47 = 1,107.09/x
  3. Step 3: Cross multiply
    2,749.37x = 4,125.47 × 1,107.09
  4. Step 4: Simplify right side
    2,749.37x = 4,567,261.05
  5. Step 5: Solve for x
    x = 4,567,261.05/2,749.37
  6. Step 6: Final answer
    x = 1,661.21

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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.