Home / 4,091.34-5,643-3,205.38

Finding the Fourth Proportional to 4,091.34, 5,643 and 3,205.38

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Solution

The fourth proportional to 4,091.34, 5,643 and 3,205.38 is: 4,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.34 : 5,643 = 3,205.38 : x
  2. Step 2: Convert to fraction form
    4,091.34/5,643 = 3,205.38/x
  3. Step 3: Cross multiply
    4,091.34x = 5,643 × 3,205.38
  4. Step 4: Simplify right side
    4,091.34x = 18,087,959.34
  5. Step 5: Solve for x
    x = 18,087,959.34/4,091.34
  6. Step 6: Final answer
    x = 4,421.04

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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.