Home / 3,620.54-5,417.10-2,190.48

Finding the Fourth Proportional to 3,620.54, 5,417.10 and 2,190.48

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Solution

The fourth proportional to 3,620.54, 5,417.10 and 2,190.48 is: 3,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.54 : 5,417.10 = 2,190.48 : x
  2. Step 2: Convert to fraction form
    3,620.54/5,417.10 = 2,190.48/x
  3. Step 3: Cross multiply
    3,620.54x = 5,417.10 × 2,190.48
  4. Step 4: Simplify right side
    3,620.54x = 11,866,049.21
  5. Step 5: Solve for x
    x = 11,866,049.21/3,620.54
  6. Step 6: Final answer
    x = 3,277.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.