Home / 2,419.40-3,623.67-2,102.99

Finding the Fourth Proportional to 2,419.40, 3,623.67 and 2,102.99

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Solution

The fourth proportional to 2,419.40, 3,623.67 and 2,102.99 is: 3,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.40 : 3,623.67 = 2,102.99 : x
  2. Step 2: Convert to fraction form
    2,419.40/3,623.67 = 2,102.99/x
  3. Step 3: Cross multiply
    2,419.40x = 3,623.67 × 2,102.99
  4. Step 4: Simplify right side
    2,419.40x = 7,620,523.65
  5. Step 5: Solve for x
    x = 7,620,523.65/2,419.40
  6. Step 6: Final answer
    x = 3,149.75

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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.