Home / 3,105.82-4,285.65-1,846.90

Finding the Fourth Proportional to 3,105.82, 4,285.65 and 1,846.90

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Solution

The fourth proportional to 3,105.82, 4,285.65 and 1,846.90 is: 2,548.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.82 : 4,285.65 = 1,846.90 : x
  2. Step 2: Convert to fraction form
    3,105.82/4,285.65 = 1,846.90/x
  3. Step 3: Cross multiply
    3,105.82x = 4,285.65 × 1,846.90
  4. Step 4: Simplify right side
    3,105.82x = 7,915,166.99
  5. Step 5: Solve for x
    x = 7,915,166.99/3,105.82
  6. Step 6: Final answer
    x = 2,548.50

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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.