Home / 5,205.21-7,182.92-2,846.90

Finding the Fourth Proportional to 5,205.21, 7,182.92 and 2,846.90

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Solution

The fourth proportional to 5,205.21, 7,182.92 and 2,846.90 is: 3,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.21 : 7,182.92 = 2,846.90 : x
  2. Step 2: Convert to fraction form
    5,205.21/7,182.92 = 2,846.90/x
  3. Step 3: Cross multiply
    5,205.21x = 7,182.92 × 2,846.90
  4. Step 4: Simplify right side
    5,205.21x = 20,449,004.80
  5. Step 5: Solve for x
    x = 20,449,004.80/5,205.21
  6. Step 6: Final answer
    x = 3,928.56

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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.