Home / 6,120.36-9,177.72-1,959.54

Finding the Fourth Proportional to 6,120.36, 9,177.72 and 1,959.54

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Solution

The fourth proportional to 6,120.36, 9,177.72 and 1,959.54 is: 2,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.36 : 9,177.72 = 1,959.54 : x
  2. Step 2: Convert to fraction form
    6,120.36/9,177.72 = 1,959.54/x
  3. Step 3: Cross multiply
    6,120.36x = 9,177.72 × 1,959.54
  4. Step 4: Simplify right side
    6,120.36x = 17,984,109.45
  5. Step 5: Solve for x
    x = 17,984,109.45/6,120.36
  6. Step 6: Final answer
    x = 2,938.41

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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.