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Finding the Fourth Proportional to 1,192, 1,783.94 and 1,038.38

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Solution

The fourth proportional to 1,192, 1,783.94 and 1,038.38 is: 1,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192 : 1,783.94 = 1,038.38 : x
  2. Step 2: Convert to fraction form
    1,192/1,783.94 = 1,038.38/x
  3. Step 3: Cross multiply
    1,192x = 1,783.94 × 1,038.38
  4. Step 4: Simplify right side
    1,192x = 1,852,407.62
  5. Step 5: Solve for x
    x = 1,852,407.62/1,192
  6. Step 6: Final answer
    x = 1,554.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.