Home / 5,209.15-7,185.09-3,191.62

Finding the Fourth Proportional to 5,209.15, 7,185.09 and 3,191.62

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Solution

The fourth proportional to 5,209.15, 7,185.09 and 3,191.62 is: 4,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.15 : 7,185.09 = 3,191.62 : x
  2. Step 2: Convert to fraction form
    5,209.15/7,185.09 = 3,191.62/x
  3. Step 3: Cross multiply
    5,209.15x = 7,185.09 × 3,191.62
  4. Step 4: Simplify right side
    5,209.15x = 22,932,076.95
  5. Step 5: Solve for x
    x = 22,932,076.95/5,209.15
  6. Step 6: Final answer
    x = 4,402.27

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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.