Home / 1,940.48-2,678.04-1,101.23

Finding the Fourth Proportional to 1,940.48, 2,678.04 and 1,101.23

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Solution

The fourth proportional to 1,940.48, 2,678.04 and 1,101.23 is: 1,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.48 : 2,678.04 = 1,101.23 : x
  2. Step 2: Convert to fraction form
    1,940.48/2,678.04 = 1,101.23/x
  3. Step 3: Cross multiply
    1,940.48x = 2,678.04 × 1,101.23
  4. Step 4: Simplify right side
    1,940.48x = 2,949,124.60
  5. Step 5: Solve for x
    x = 2,949,124.60/1,940.48
  6. Step 6: Final answer
    x = 1,519.80

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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.