Home / 2,504.85-3,456.78-1,385.85

Finding the Fourth Proportional to 2,504.85, 3,456.78 and 1,385.85

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Solution

The fourth proportional to 2,504.85, 3,456.78 and 1,385.85 is: 1,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,504.85 : 3,456.78 = 1,385.85 : x
  2. Step 2: Convert to fraction form
    2,504.85/3,456.78 = 1,385.85/x
  3. Step 3: Cross multiply
    2,504.85x = 3,456.78 × 1,385.85
  4. Step 4: Simplify right side
    2,504.85x = 4,790,578.56
  5. Step 5: Solve for x
    x = 4,790,578.56/2,504.85
  6. Step 6: Final answer
    x = 1,912.52

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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.