Home / 3,605.55-5,400.23-2,196.15

Finding the Fourth Proportional to 3,605.55, 5,400.23 and 2,196.15

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Solution

The fourth proportional to 3,605.55, 5,400.23 and 2,196.15 is: 3,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.55 : 5,400.23 = 2,196.15 : x
  2. Step 2: Convert to fraction form
    3,605.55/5,400.23 = 2,196.15/x
  3. Step 3: Cross multiply
    3,605.55x = 5,400.23 × 2,196.15
  4. Step 4: Simplify right side
    3,605.55x = 11,859,704.13
  5. Step 5: Solve for x
    x = 11,859,704.13/3,605.55
  6. Step 6: Final answer
    x = 3,289.29

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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.