Home / 3,189.26-4,783.12-1,108.71

Finding the Fourth Proportional to 3,189.26, 4,783.12 and 1,108.71

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Solution

The fourth proportional to 3,189.26, 4,783.12 and 1,108.71 is: 1,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.26 : 4,783.12 = 1,108.71 : x
  2. Step 2: Convert to fraction form
    3,189.26/4,783.12 = 1,108.71/x
  3. Step 3: Cross multiply
    3,189.26x = 4,783.12 × 1,108.71
  4. Step 4: Simplify right side
    3,189.26x = 5,303,079.23
  5. Step 5: Solve for x
    x = 5,303,079.23/3,189.26
  6. Step 6: Final answer
    x = 1,662.79

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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.