Home / 3,553.80-4,905.78-2,622.60

Finding the Fourth Proportional to 3,553.80, 4,905.78 and 2,622.60

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Solution

The fourth proportional to 3,553.80, 4,905.78 and 2,622.60 is: 3,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.80 : 4,905.78 = 2,622.60 : x
  2. Step 2: Convert to fraction form
    3,553.80/4,905.78 = 2,622.60/x
  3. Step 3: Cross multiply
    3,553.80x = 4,905.78 × 2,622.60
  4. Step 4: Simplify right side
    3,553.80x = 12,865,898.63
  5. Step 5: Solve for x
    x = 12,865,898.63/3,553.80
  6. Step 6: Final answer
    x = 3,620.32

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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.