Home / 3,945.98-5,445.49-2,267.37

Finding the Fourth Proportional to 3,945.98, 5,445.49 and 2,267.37

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Solution

The fourth proportional to 3,945.98, 5,445.49 and 2,267.37 is: 3,128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.98 : 5,445.49 = 2,267.37 : x
  2. Step 2: Convert to fraction form
    3,945.98/5,445.49 = 2,267.37/x
  3. Step 3: Cross multiply
    3,945.98x = 5,445.49 × 2,267.37
  4. Step 4: Simplify right side
    3,945.98x = 12,346,940.66
  5. Step 5: Solve for x
    x = 12,346,940.66/3,945.98
  6. Step 6: Final answer
    x = 3,128.99

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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.