Home / 1,908.63-2,861.33-1,817.91

Finding the Fourth Proportional to 1,908.63, 2,861.33 and 1,817.91

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Solution

The fourth proportional to 1,908.63, 2,861.33 and 1,817.91 is: 2,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.63 : 2,861.33 = 1,817.91 : x
  2. Step 2: Convert to fraction form
    1,908.63/2,861.33 = 1,817.91/x
  3. Step 3: Cross multiply
    1,908.63x = 2,861.33 × 1,817.91
  4. Step 4: Simplify right side
    1,908.63x = 5,201,631.33
  5. Step 5: Solve for x
    x = 5,201,631.33/1,908.63
  6. Step 6: Final answer
    x = 2,725.32

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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.