Home / 1,979.81-2,732.14-1,095.75

Finding the Fourth Proportional to 1,979.81, 2,732.14 and 1,095.75

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Solution

The fourth proportional to 1,979.81, 2,732.14 and 1,095.75 is: 1,512.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.81 : 2,732.14 = 1,095.75 : x
  2. Step 2: Convert to fraction form
    1,979.81/2,732.14 = 1,095.75/x
  3. Step 3: Cross multiply
    1,979.81x = 2,732.14 × 1,095.75
  4. Step 4: Simplify right side
    1,979.81x = 2,993,743.77
  5. Step 5: Solve for x
    x = 2,993,743.77/1,979.81
  6. Step 6: Final answer
    x = 1,512.14

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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.