Home / 2,741.72-4,110.62-1,280.07

Finding the Fourth Proportional to 2,741.72, 4,110.62 and 1,280.07

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Solution

The fourth proportional to 2,741.72, 4,110.62 and 1,280.07 is: 1,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.72 : 4,110.62 = 1,280.07 : x
  2. Step 2: Convert to fraction form
    2,741.72/4,110.62 = 1,280.07/x
  3. Step 3: Cross multiply
    2,741.72x = 4,110.62 × 1,280.07
  4. Step 4: Simplify right side
    2,741.72x = 5,261,874.94
  5. Step 5: Solve for x
    x = 5,261,874.94/2,741.72
  6. Step 6: Final answer
    x = 1,919.19

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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.