Home / 1,819.09-2,725.48-1,431.57

Finding the Fourth Proportional to 1,819.09, 2,725.48 and 1,431.57

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Solution

The fourth proportional to 1,819.09, 2,725.48 and 1,431.57 is: 2,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.09 : 2,725.48 = 1,431.57 : x
  2. Step 2: Convert to fraction form
    1,819.09/2,725.48 = 1,431.57/x
  3. Step 3: Cross multiply
    1,819.09x = 2,725.48 × 1,431.57
  4. Step 4: Simplify right side
    1,819.09x = 3,901,715.40
  5. Step 5: Solve for x
    x = 3,901,715.40/1,819.09
  6. Step 6: Final answer
    x = 2,144.87

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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.