Home / 1,940.73-2,678.23-1,056.54

Finding the Fourth Proportional to 1,940.73, 2,678.23 and 1,056.54

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Solution

The fourth proportional to 1,940.73, 2,678.23 and 1,056.54 is: 1,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.73 : 2,678.23 = 1,056.54 : x
  2. Step 2: Convert to fraction form
    1,940.73/2,678.23 = 1,056.54/x
  3. Step 3: Cross multiply
    1,940.73x = 2,678.23 × 1,056.54
  4. Step 4: Simplify right side
    1,940.73x = 2,829,668.49
  5. Step 5: Solve for x
    x = 2,829,668.49/1,940.73
  6. Step 6: Final answer
    x = 1,458.05

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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.