Home / 2,781.92-4,173.44-1,396.16

Finding the Fourth Proportional to 2,781.92, 4,173.44 and 1,396.16

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Solution

The fourth proportional to 2,781.92, 4,173.44 and 1,396.16 is: 2,094.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.92 : 4,173.44 = 1,396.16 : x
  2. Step 2: Convert to fraction form
    2,781.92/4,173.44 = 1,396.16/x
  3. Step 3: Cross multiply
    2,781.92x = 4,173.44 × 1,396.16
  4. Step 4: Simplify right side
    2,781.92x = 5,826,789.99
  5. Step 5: Solve for x
    x = 5,826,789.99/2,781.92
  6. Step 6: Final answer
    x = 2,094.52

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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.