Home / 2,450.01-3,380.19-1,387.65

Finding the Fourth Proportional to 2,450.01, 3,380.19 and 1,387.65

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Solution

The fourth proportional to 2,450.01, 3,380.19 and 1,387.65 is: 1,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.01 : 3,380.19 = 1,387.65 : x
  2. Step 2: Convert to fraction form
    2,450.01/3,380.19 = 1,387.65/x
  3. Step 3: Cross multiply
    2,450.01x = 3,380.19 × 1,387.65
  4. Step 4: Simplify right side
    2,450.01x = 4,690,520.65
  5. Step 5: Solve for x
    x = 4,690,520.65/2,450.01
  6. Step 6: Final answer
    x = 1,914.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.