Home / 5,556.20-7,667.55-3,072.20

Finding the Fourth Proportional to 5,556.20, 7,667.55 and 3,072.20

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Solution

The fourth proportional to 5,556.20, 7,667.55 and 3,072.20 is: 4,239.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.20 : 7,667.55 = 3,072.20 : x
  2. Step 2: Convert to fraction form
    5,556.20/7,667.55 = 3,072.20/x
  3. Step 3: Cross multiply
    5,556.20x = 7,667.55 × 3,072.20
  4. Step 4: Simplify right side
    5,556.20x = 23,556,208.77
  5. Step 5: Solve for x
    x = 23,556,208.77/5,556.20
  6. Step 6: Final answer
    x = 4,239.63

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1.5x scale

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.