Home / 1,979.48-2,731.69-1,095.31

Finding the Fourth Proportional to 1,979.48, 2,731.69 and 1,095.31

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Solution

The fourth proportional to 1,979.48, 2,731.69 and 1,095.31 is: 1,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.48 : 2,731.69 = 1,095.31 : x
  2. Step 2: Convert to fraction form
    1,979.48/2,731.69 = 1,095.31/x
  3. Step 3: Cross multiply
    1,979.48x = 2,731.69 × 1,095.31
  4. Step 4: Simplify right side
    1,979.48x = 2,992,047.37
  5. Step 5: Solve for x
    x = 2,992,047.37/1,979.48
  6. Step 6: Final answer
    x = 1,511.54

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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.