Home / 4,128.48-5,698.80-2,731.68

Finding the Fourth Proportional to 4,128.48, 5,698.80 and 2,731.68

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Solution

The fourth proportional to 4,128.48, 5,698.80 and 2,731.68 is: 3,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.48 : 5,698.80 = 2,731.68 : x
  2. Step 2: Convert to fraction form
    4,128.48/5,698.80 = 2,731.68/x
  3. Step 3: Cross multiply
    4,128.48x = 5,698.80 × 2,731.68
  4. Step 4: Simplify right side
    4,128.48x = 15,567,297.98
  5. Step 5: Solve for x
    x = 15,567,297.98/4,128.48
  6. Step 6: Final answer
    x = 3,770.71

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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.