Home / 5,556.74-8,330.78-2,781.98

Finding the Fourth Proportional to 5,556.74, 8,330.78 and 2,781.98

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Solution

The fourth proportional to 5,556.74, 8,330.78 and 2,781.98 is: 4,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.74 : 8,330.78 = 2,781.98 : x
  2. Step 2: Convert to fraction form
    5,556.74/8,330.78 = 2,781.98/x
  3. Step 3: Cross multiply
    5,556.74x = 8,330.78 × 2,781.98
  4. Step 4: Simplify right side
    5,556.74x = 23,176,091.13
  5. Step 5: Solve for x
    x = 23,176,091.13/5,556.74
  6. Step 6: Final answer
    x = 4,170.81

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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.