Home / 4,128.12-5,699.75-2,694.96

Finding the Fourth Proportional to 4,128.12, 5,699.75 and 2,694.96

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Solution

The fourth proportional to 4,128.12, 5,699.75 and 2,694.96 is: 3,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.12 : 5,699.75 = 2,694.96 : x
  2. Step 2: Convert to fraction form
    4,128.12/5,699.75 = 2,694.96/x
  3. Step 3: Cross multiply
    4,128.12x = 5,699.75 × 2,694.96
  4. Step 4: Simplify right side
    4,128.12x = 15,360,584.79
  5. Step 5: Solve for x
    x = 15,360,584.79/4,128.12
  6. Step 6: Final answer
    x = 3,720.96

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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.