Home / 2,699.70-4,044.89-2,107.90

Finding the Fourth Proportional to 2,699.70, 4,044.89 and 2,107.90

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Solution

The fourth proportional to 2,699.70, 4,044.89 and 2,107.90 is: 3,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.70 : 4,044.89 = 2,107.90 : x
  2. Step 2: Convert to fraction form
    2,699.70/4,044.89 = 2,107.90/x
  3. Step 3: Cross multiply
    2,699.70x = 4,044.89 × 2,107.90
  4. Step 4: Simplify right side
    2,699.70x = 8,526,213.09
  5. Step 5: Solve for x
    x = 8,526,213.09/2,699.70
  6. Step 6: Final answer
    x = 3,158.21

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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.