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Finding the Fourth Proportional to 2,674.92, 3,691.36 and 1,556.51

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Solution

The fourth proportional to 2,674.92, 3,691.36 and 1,556.51 is: 2,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.92 : 3,691.36 = 1,556.51 : x
  2. Step 2: Convert to fraction form
    2,674.92/3,691.36 = 1,556.51/x
  3. Step 3: Cross multiply
    2,674.92x = 3,691.36 × 1,556.51
  4. Step 4: Simplify right side
    2,674.92x = 5,745,630.97
  5. Step 5: Solve for x
    x = 5,745,630.97/2,674.92
  6. Step 6: Final answer
    x = 2,147.96

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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.