Home / 5,191.78-7,164.65-2,833.92

Finding the Fourth Proportional to 5,191.78, 7,164.65 and 2,833.92

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Solution

The fourth proportional to 5,191.78, 7,164.65 and 2,833.92 is: 3,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.78 : 7,164.65 = 2,833.92 : x
  2. Step 2: Convert to fraction form
    5,191.78/7,164.65 = 2,833.92/x
  3. Step 3: Cross multiply
    5,191.78x = 7,164.65 × 2,833.92
  4. Step 4: Simplify right side
    5,191.78x = 20,304,063.03
  5. Step 5: Solve for x
    x = 20,304,063.03/5,191.78
  6. Step 6: Final answer
    x = 3,910.81

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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.