Home / 1,485.91-2,222.30-1,322.54

Finding the Fourth Proportional to 1,485.91, 2,222.30 and 1,322.54

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Solution

The fourth proportional to 1,485.91, 2,222.30 and 1,322.54 is: 1,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.91 : 2,222.30 = 1,322.54 : x
  2. Step 2: Convert to fraction form
    1,485.91/2,222.30 = 1,322.54/x
  3. Step 3: Cross multiply
    1,485.91x = 2,222.30 × 1,322.54
  4. Step 4: Simplify right side
    1,485.91x = 2,939,093.67
  5. Step 5: Solve for x
    x = 2,939,093.67/1,485.91
  6. Step 6: Final answer
    x = 1,977.97

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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.