Home / 3,189.36-4,782.19-1,239.29

Finding the Fourth Proportional to 3,189.36, 4,782.19 and 1,239.29

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Solution

The fourth proportional to 3,189.36, 4,782.19 and 1,239.29 is: 1,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.36 : 4,782.19 = 1,239.29 : x
  2. Step 2: Convert to fraction form
    3,189.36/4,782.19 = 1,239.29/x
  3. Step 3: Cross multiply
    3,189.36x = 4,782.19 × 1,239.29
  4. Step 4: Simplify right side
    3,189.36x = 5,926,520.25
  5. Step 5: Solve for x
    x = 5,926,520.25/3,189.36
  6. Step 6: Final answer
    x = 1,858.22

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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.