Home / 6,120.09-9,179.35-1,959.75

Finding the Fourth Proportional to 6,120.09, 9,179.35 and 1,959.75

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Solution

The fourth proportional to 6,120.09, 9,179.35 and 1,959.75 is: 2,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.09 : 9,179.35 = 1,959.75 : x
  2. Step 2: Convert to fraction form
    6,120.09/9,179.35 = 1,959.75/x
  3. Step 3: Cross multiply
    6,120.09x = 9,179.35 × 1,959.75
  4. Step 4: Simplify right side
    6,120.09x = 17,989,231.16
  5. Step 5: Solve for x
    x = 17,989,231.16/6,120.09
  6. Step 6: Final answer
    x = 2,939.37

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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.