Home / 1,939.92-2,911.55-1,016.12

Finding the Fourth Proportional to 1,939.92, 2,911.55 and 1,016.12

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Solution

The fourth proportional to 1,939.92, 2,911.55 and 1,016.12 is: 1,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.92 : 2,911.55 = 1,016.12 : x
  2. Step 2: Convert to fraction form
    1,939.92/2,911.55 = 1,016.12/x
  3. Step 3: Cross multiply
    1,939.92x = 2,911.55 × 1,016.12
  4. Step 4: Simplify right side
    1,939.92x = 2,958,484.19
  5. Step 5: Solve for x
    x = 2,958,484.19/1,939.92
  6. Step 6: Final answer
    x = 1,525.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.