Home / 2,628.91-3,942.82-1,241.65

Finding the Fourth Proportional to 2,628.91, 3,942.82 and 1,241.65

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Solution

The fourth proportional to 2,628.91, 3,942.82 and 1,241.65 is: 1,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.91 : 3,942.82 = 1,241.65 : x
  2. Step 2: Convert to fraction form
    2,628.91/3,942.82 = 1,241.65/x
  3. Step 3: Cross multiply
    2,628.91x = 3,942.82 × 1,241.65
  4. Step 4: Simplify right side
    2,628.91x = 4,895,602.45
  5. Step 5: Solve for x
    x = 4,895,602.45/2,628.91
  6. Step 6: Final answer
    x = 1,862.22

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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.