Home / 4,786.12-7,178.37-1,322.56

Finding the Fourth Proportional to 4,786.12, 7,178.37 and 1,322.56

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Solution

The fourth proportional to 4,786.12, 7,178.37 and 1,322.56 is: 1,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.12 : 7,178.37 = 1,322.56 : x
  2. Step 2: Convert to fraction form
    4,786.12/7,178.37 = 1,322.56/x
  3. Step 3: Cross multiply
    4,786.12x = 7,178.37 × 1,322.56
  4. Step 4: Simplify right side
    4,786.12x = 9,493,847.93
  5. Step 5: Solve for x
    x = 9,493,847.93/4,786.12
  6. Step 6: Final answer
    x = 1,983.62

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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.