Home / 4,747.80-7,124.38-2,556.48

Finding the Fourth Proportional to 4,747.80, 7,124.38 and 2,556.48

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Solution

The fourth proportional to 4,747.80, 7,124.38 and 2,556.48 is: 3,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.80 : 7,124.38 = 2,556.48 : x
  2. Step 2: Convert to fraction form
    4,747.80/7,124.38 = 2,556.48/x
  3. Step 3: Cross multiply
    4,747.80x = 7,124.38 × 2,556.48
  4. Step 4: Simplify right side
    4,747.80x = 18,213,334.98
  5. Step 5: Solve for x
    x = 18,213,334.98/4,747.80
  6. Step 6: Final answer
    x = 3,836.16

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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.