Home / 3,579.98-4,939.89-1,986.61

Finding the Fourth Proportional to 3,579.98, 4,939.89 and 1,986.61

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Solution

The fourth proportional to 3,579.98, 4,939.89 and 1,986.61 is: 2,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.98 : 4,939.89 = 1,986.61 : x
  2. Step 2: Convert to fraction form
    3,579.98/4,939.89 = 1,986.61/x
  3. Step 3: Cross multiply
    3,579.98x = 4,939.89 × 1,986.61
  4. Step 4: Simplify right side
    3,579.98x = 9,813,634.87
  5. Step 5: Solve for x
    x = 9,813,634.87/3,579.98
  6. Step 6: Final answer
    x = 2,741.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.