Home / 2,736.28-4,101.90-1,091.80

Finding the Fourth Proportional to 2,736.28, 4,101.90 and 1,091.80

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Solution

The fourth proportional to 2,736.28, 4,101.90 and 1,091.80 is: 1,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.28 : 4,101.90 = 1,091.80 : x
  2. Step 2: Convert to fraction form
    2,736.28/4,101.90 = 1,091.80/x
  3. Step 3: Cross multiply
    2,736.28x = 4,101.90 × 1,091.80
  4. Step 4: Simplify right side
    2,736.28x = 4,478,454.42
  5. Step 5: Solve for x
    x = 4,478,454.42/2,736.28
  6. Step 6: Final answer
    x = 1,636.69

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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.