Home / 3,895.89-5,842.98-1,121.94

Finding the Fourth Proportional to 3,895.89, 5,842.98 and 1,121.94

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Solution

The fourth proportional to 3,895.89, 5,842.98 and 1,121.94 is: 1,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.89 : 5,842.98 = 1,121.94 : x
  2. Step 2: Convert to fraction form
    3,895.89/5,842.98 = 1,121.94/x
  3. Step 3: Cross multiply
    3,895.89x = 5,842.98 × 1,121.94
  4. Step 4: Simplify right side
    3,895.89x = 6,555,472.98
  5. Step 5: Solve for x
    x = 6,555,472.98/3,895.89
  6. Step 6: Final answer
    x = 1,682.66

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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.