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Finding the Fourth Proportional to 2,340.79, 3,513.02 and 882.79

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Solution

The fourth proportional to 2,340.79, 3,513.02 and 882.79 is: 1,324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.79 : 3,513.02 = 882.79 : x
  2. Step 2: Convert to fraction form
    2,340.79/3,513.02 = 882.79/x
  3. Step 3: Cross multiply
    2,340.79x = 3,513.02 × 882.79
  4. Step 4: Simplify right side
    2,340.79x = 3,101,258.93
  5. Step 5: Solve for x
    x = 3,101,258.93/2,340.79
  6. Step 6: Final answer
    x = 1,324.88

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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.