Home / 2,986.30-4,480.31-1,425.07

Finding the Fourth Proportional to 2,986.30, 4,480.31 and 1,425.07

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Solution

The fourth proportional to 2,986.30, 4,480.31 and 1,425.07 is: 2,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.30 : 4,480.31 = 1,425.07 : x
  2. Step 2: Convert to fraction form
    2,986.30/4,480.31 = 1,425.07/x
  3. Step 3: Cross multiply
    2,986.30x = 4,480.31 × 1,425.07
  4. Step 4: Simplify right side
    2,986.30x = 6,384,755.37
  5. Step 5: Solve for x
    x = 6,384,755.37/2,986.30
  6. Step 6: Final answer
    x = 2,138.02

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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.