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Finding the Fourth Proportional to 1,992.53, 2,973.73 and 1,940.69

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Solution

The fourth proportional to 1,992.53, 2,973.73 and 1,940.69 is: 2,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.53 : 2,973.73 = 1,940.69 : x
  2. Step 2: Convert to fraction form
    1,992.53/2,973.73 = 1,940.69/x
  3. Step 3: Cross multiply
    1,992.53x = 2,973.73 × 1,940.69
  4. Step 4: Simplify right side
    1,992.53x = 5,771,088.07
  5. Step 5: Solve for x
    x = 5,771,088.07/1,992.53
  6. Step 6: Final answer
    x = 2,896.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.