Home / 3,485.39-5,221.14-2,550.30

Finding the Fourth Proportional to 3,485.39, 5,221.14 and 2,550.30

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Solution

The fourth proportional to 3,485.39, 5,221.14 and 2,550.30 is: 3,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.39 : 5,221.14 = 2,550.30 : x
  2. Step 2: Convert to fraction form
    3,485.39/5,221.14 = 2,550.30/x
  3. Step 3: Cross multiply
    3,485.39x = 5,221.14 × 2,550.30
  4. Step 4: Simplify right side
    3,485.39x = 13,315,487.91
  5. Step 5: Solve for x
    x = 13,315,487.91/3,485.39
  6. Step 6: Final answer
    x = 3,820.37

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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.