Home / 3,604.05-5,409.45-2,220.09

Finding the Fourth Proportional to 3,604.05, 5,409.45 and 2,220.09

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Solution

The fourth proportional to 3,604.05, 5,409.45 and 2,220.09 is: 3,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.05 : 5,409.45 = 2,220.09 : x
  2. Step 2: Convert to fraction form
    3,604.05/5,409.45 = 2,220.09/x
  3. Step 3: Cross multiply
    3,604.05x = 5,409.45 × 2,220.09
  4. Step 4: Simplify right side
    3,604.05x = 12,009,465.85
  5. Step 5: Solve for x
    x = 12,009,465.85/3,604.05
  6. Step 6: Final answer
    x = 3,332.21

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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.