Home / 3,949.20-5,450.69-2,602.45

Finding the Fourth Proportional to 3,949.20, 5,450.69 and 2,602.45

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Solution

The fourth proportional to 3,949.20, 5,450.69 and 2,602.45 is: 3,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.20 : 5,450.69 = 2,602.45 : x
  2. Step 2: Convert to fraction form
    3,949.20/5,450.69 = 2,602.45/x
  3. Step 3: Cross multiply
    3,949.20x = 5,450.69 × 2,602.45
  4. Step 4: Simplify right side
    3,949.20x = 14,185,141.07
  5. Step 5: Solve for x
    x = 14,185,141.07/3,949.20
  6. Step 6: Final answer
    x = 3,591.90

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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.