Home / 1,906.45-2,861.09-1,418.02

Finding the Fourth Proportional to 1,906.45, 2,861.09 and 1,418.02

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Solution

The fourth proportional to 1,906.45, 2,861.09 and 1,418.02 is: 2,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.45 : 2,861.09 = 1,418.02 : x
  2. Step 2: Convert to fraction form
    1,906.45/2,861.09 = 1,418.02/x
  3. Step 3: Cross multiply
    1,906.45x = 2,861.09 × 1,418.02
  4. Step 4: Simplify right side
    1,906.45x = 4,057,082.84
  5. Step 5: Solve for x
    x = 4,057,082.84/1,906.45
  6. Step 6: Final answer
    x = 2,128.08

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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.