Home / 1,899.89-2,836.09-1,641.56

Finding the Fourth Proportional to 1,899.89, 2,836.09 and 1,641.56

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Solution

The fourth proportional to 1,899.89, 2,836.09 and 1,641.56 is: 2,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.89 : 2,836.09 = 1,641.56 : x
  2. Step 2: Convert to fraction form
    1,899.89/2,836.09 = 1,641.56/x
  3. Step 3: Cross multiply
    1,899.89x = 2,836.09 × 1,641.56
  4. Step 4: Simplify right side
    1,899.89x = 4,655,593.62
  5. Step 5: Solve for x
    x = 4,655,593.62/1,899.89
  6. Step 6: Final answer
    x = 2,450.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.