Home / 3,453.45-4,765.68-1,961.25

Finding the Fourth Proportional to 3,453.45, 4,765.68 and 1,961.25

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Solution

The fourth proportional to 3,453.45, 4,765.68 and 1,961.25 is: 2,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.45 : 4,765.68 = 1,961.25 : x
  2. Step 2: Convert to fraction form
    3,453.45/4,765.68 = 1,961.25/x
  3. Step 3: Cross multiply
    3,453.45x = 4,765.68 × 1,961.25
  4. Step 4: Simplify right side
    3,453.45x = 9,346,689.90
  5. Step 5: Solve for x
    x = 9,346,689.90/3,453.45
  6. Step 6: Final answer
    x = 2,706.48

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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.