Home / 1,940.92-2,678.19-1,101.35

Finding the Fourth Proportional to 1,940.92, 2,678.19 and 1,101.35

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Solution

The fourth proportional to 1,940.92, 2,678.19 and 1,101.35 is: 1,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.92 : 2,678.19 = 1,101.35 : x
  2. Step 2: Convert to fraction form
    1,940.92/2,678.19 = 1,101.35/x
  3. Step 3: Cross multiply
    1,940.92x = 2,678.19 × 1,101.35
  4. Step 4: Simplify right side
    1,940.92x = 2,949,624.56
  5. Step 5: Solve for x
    x = 2,949,624.56/1,940.92
  6. Step 6: Final answer
    x = 1,519.70

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1.5x scale

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.