Home / 1,960.91-2,705.99-1,076.69

Finding the Fourth Proportional to 1,960.91, 2,705.99 and 1,076.69

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Solution

The fourth proportional to 1,960.91, 2,705.99 and 1,076.69 is: 1,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.91 : 2,705.99 = 1,076.69 : x
  2. Step 2: Convert to fraction form
    1,960.91/2,705.99 = 1,076.69/x
  3. Step 3: Cross multiply
    1,960.91x = 2,705.99 × 1,076.69
  4. Step 4: Simplify right side
    1,960.91x = 2,913,498.84
  5. Step 5: Solve for x
    x = 2,913,498.84/1,960.91
  6. Step 6: Final answer
    x = 1,485.79

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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.