Home / 1,940.55-2,678.54-1,195.58

Finding the Fourth Proportional to 1,940.55, 2,678.54 and 1,195.58

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Solution

The fourth proportional to 1,940.55, 2,678.54 and 1,195.58 is: 1,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.55 : 2,678.54 = 1,195.58 : x
  2. Step 2: Convert to fraction form
    1,940.55/2,678.54 = 1,195.58/x
  3. Step 3: Cross multiply
    1,940.55x = 2,678.54 × 1,195.58
  4. Step 4: Simplify right side
    1,940.55x = 3,202,389.48
  5. Step 5: Solve for x
    x = 3,202,389.48/1,940.55
  6. Step 6: Final answer
    x = 1,650.25

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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.