Home / 3,191.36-4,786.50-1,731.20

Finding the Fourth Proportional to 3,191.36, 4,786.50 and 1,731.20

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Solution

The fourth proportional to 3,191.36, 4,786.50 and 1,731.20 is: 2,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.36 : 4,786.50 = 1,731.20 : x
  2. Step 2: Convert to fraction form
    3,191.36/4,786.50 = 1,731.20/x
  3. Step 3: Cross multiply
    3,191.36x = 4,786.50 × 1,731.20
  4. Step 4: Simplify right side
    3,191.36x = 8,286,388.80
  5. Step 5: Solve for x
    x = 8,286,388.80/3,191.36
  6. Step 6: Final answer
    x = 2,596.51

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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.