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Finding the Fourth Proportional to 3,608, 5,412.48 and 1,556.48

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Solution

The fourth proportional to 3,608, 5,412.48 and 1,556.48 is: 2,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608 : 5,412.48 = 1,556.48 : x
  2. Step 2: Convert to fraction form
    3,608/5,412.48 = 1,556.48/x
  3. Step 3: Cross multiply
    3,608x = 5,412.48 × 1,556.48
  4. Step 4: Simplify right side
    3,608x = 8,424,416.87
  5. Step 5: Solve for x
    x = 8,424,416.87/3,608
  6. Step 6: Final answer
    x = 2,334.93

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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.