Home / 3,279.45-4,531.40-2,621.73

Finding the Fourth Proportional to 3,279.45, 4,531.40 and 2,621.73

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Solution

The fourth proportional to 3,279.45, 4,531.40 and 2,621.73 is: 3,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.45 : 4,531.40 = 2,621.73 : x
  2. Step 2: Convert to fraction form
    3,279.45/4,531.40 = 2,621.73/x
  3. Step 3: Cross multiply
    3,279.45x = 4,531.40 × 2,621.73
  4. Step 4: Simplify right side
    3,279.45x = 11,880,107.32
  5. Step 5: Solve for x
    x = 11,880,107.32/3,279.45
  6. Step 6: Final answer
    x = 3,622.59

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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.