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Finding the Fourth Proportional to 1,294.69, 1,942.02 and 882.80

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Solution

The fourth proportional to 1,294.69, 1,942.02 and 882.80 is: 1,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.69 : 1,942.02 = 882.80 : x
  2. Step 2: Convert to fraction form
    1,294.69/1,942.02 = 882.80/x
  3. Step 3: Cross multiply
    1,294.69x = 1,942.02 × 882.80
  4. Step 4: Simplify right side
    1,294.69x = 1,714,415.26
  5. Step 5: Solve for x
    x = 1,714,415.26/1,294.69
  6. Step 6: Final answer
    x = 1,324.19

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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.