Home / 1,979.82-2,732.15-1,095.63

Finding the Fourth Proportional to 1,979.82, 2,732.15 and 1,095.63

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Solution

The fourth proportional to 1,979.82, 2,732.15 and 1,095.63 is: 1,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.82 : 2,732.15 = 1,095.63 : x
  2. Step 2: Convert to fraction form
    1,979.82/2,732.15 = 1,095.63/x
  3. Step 3: Cross multiply
    1,979.82x = 2,732.15 × 1,095.63
  4. Step 4: Simplify right side
    1,979.82x = 2,993,420.03
  5. Step 5: Solve for x
    x = 2,993,420.03/1,979.82
  6. Step 6: Final answer
    x = 1,511.97

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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.