Home / 2,979.98-4,112.39-1,653.69

Finding the Fourth Proportional to 2,979.98, 4,112.39 and 1,653.69

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Solution

The fourth proportional to 2,979.98, 4,112.39 and 1,653.69 is: 2,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.98 : 4,112.39 = 1,653.69 : x
  2. Step 2: Convert to fraction form
    2,979.98/4,112.39 = 1,653.69/x
  3. Step 3: Cross multiply
    2,979.98x = 4,112.39 × 1,653.69
  4. Step 4: Simplify right side
    2,979.98x = 6,800,605.34
  5. Step 5: Solve for x
    x = 6,800,605.34/2,979.98
  6. Step 6: Final answer
    x = 2,282.09

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