Home / 1,979.98-2,731.91-1,262.46

Finding the Fourth Proportional to 1,979.98, 2,731.91 and 1,262.46

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Solution

The fourth proportional to 1,979.98, 2,731.91 and 1,262.46 is: 1,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.98 : 2,731.91 = 1,262.46 : x
  2. Step 2: Convert to fraction form
    1,979.98/2,731.91 = 1,262.46/x
  3. Step 3: Cross multiply
    1,979.98x = 2,731.91 × 1,262.46
  4. Step 4: Simplify right side
    1,979.98x = 3,448,917.11
  5. Step 5: Solve for x
    x = 3,448,917.11/1,979.98
  6. Step 6: Final answer
    x = 1,741.89

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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.