Home / 5,091.30-7,636.92-2,169.21

Finding the Fourth Proportional to 5,091.30, 7,636.92 and 2,169.21

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Solution

The fourth proportional to 5,091.30, 7,636.92 and 2,169.21 is: 3,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.30 : 7,636.92 = 2,169.21 : x
  2. Step 2: Convert to fraction form
    5,091.30/7,636.92 = 2,169.21/x
  3. Step 3: Cross multiply
    5,091.30x = 7,636.92 × 2,169.21
  4. Step 4: Simplify right side
    5,091.30x = 16,566,083.23
  5. Step 5: Solve for x
    x = 16,566,083.23/5,091.30
  6. Step 6: Final answer
    x = 3,253.80

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1.5x scale

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.