Home / 5,209.74-7,189.56-2,851.92

Finding the Fourth Proportional to 5,209.74, 7,189.56 and 2,851.92

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Solution

The fourth proportional to 5,209.74, 7,189.56 and 2,851.92 is: 3,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.74 : 7,189.56 = 2,851.92 : x
  2. Step 2: Convert to fraction form
    5,209.74/7,189.56 = 2,851.92/x
  3. Step 3: Cross multiply
    5,209.74x = 7,189.56 × 2,851.92
  4. Step 4: Simplify right side
    5,209.74x = 20,504,049.96
  5. Step 5: Solve for x
    x = 20,504,049.96/5,209.74
  6. Step 6: Final answer
    x = 3,935.71

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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.