Home / 1,919.56-2,881.26-1,149.64

Finding the Fourth Proportional to 1,919.56, 2,881.26 and 1,149.64

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Solution

The fourth proportional to 1,919.56, 2,881.26 and 1,149.64 is: 1,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.56 : 2,881.26 = 1,149.64 : x
  2. Step 2: Convert to fraction form
    1,919.56/2,881.26 = 1,149.64/x
  3. Step 3: Cross multiply
    1,919.56x = 2,881.26 × 1,149.64
  4. Step 4: Simplify right side
    1,919.56x = 3,312,411.75
  5. Step 5: Solve for x
    x = 3,312,411.75/1,919.56
  6. Step 6: Final answer
    x = 1,725.61

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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.