Home / 4,879.97-7,320.26-1,322.65

Finding the Fourth Proportional to 4,879.97, 7,320.26 and 1,322.65

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Solution

The fourth proportional to 4,879.97, 7,320.26 and 1,322.65 is: 1,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.97 : 7,320.26 = 1,322.65 : x
  2. Step 2: Convert to fraction form
    4,879.97/7,320.26 = 1,322.65/x
  3. Step 3: Cross multiply
    4,879.97x = 7,320.26 × 1,322.65
  4. Step 4: Simplify right side
    4,879.97x = 9,682,141.89
  5. Step 5: Solve for x
    x = 9,682,141.89/4,879.97
  6. Step 6: Final answer
    x = 1,984.06

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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.