Home / 2,984.19-4,119.89-1,992.75

Finding the Fourth Proportional to 2,984.19, 4,119.89 and 1,992.75

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Solution

The fourth proportional to 2,984.19, 4,119.89 and 1,992.75 is: 2,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.19 : 4,119.89 = 1,992.75 : x
  2. Step 2: Convert to fraction form
    2,984.19/4,119.89 = 1,992.75/x
  3. Step 3: Cross multiply
    2,984.19x = 4,119.89 × 1,992.75
  4. Step 4: Simplify right side
    2,984.19x = 8,209,910.80
  5. Step 5: Solve for x
    x = 8,209,910.80/2,984.19
  6. Step 6: Final answer
    x = 2,751.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.