Home / 5,556.86-8,331.36-2,781.54

Finding the Fourth Proportional to 5,556.86, 8,331.36 and 2,781.54

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Solution

The fourth proportional to 5,556.86, 8,331.36 and 2,781.54 is: 4,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.86 : 8,331.36 = 2,781.54 : x
  2. Step 2: Convert to fraction form
    5,556.86/8,331.36 = 2,781.54/x
  3. Step 3: Cross multiply
    5,556.86x = 8,331.36 × 2,781.54
  4. Step 4: Simplify right side
    5,556.86x = 23,174,011.09
  5. Step 5: Solve for x
    x = 23,174,011.09/5,556.86
  6. Step 6: Final answer
    x = 4,170.35

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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.