Home / 3,605.42-5,404.08-2,219.78

Finding the Fourth Proportional to 3,605.42, 5,404.08 and 2,219.78

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Solution

The fourth proportional to 3,605.42, 5,404.08 and 2,219.78 is: 3,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.42 : 5,404.08 = 2,219.78 : x
  2. Step 2: Convert to fraction form
    3,605.42/5,404.08 = 2,219.78/x
  3. Step 3: Cross multiply
    3,605.42x = 5,404.08 × 2,219.78
  4. Step 4: Simplify right side
    3,605.42x = 11,995,868.70
  5. Step 5: Solve for x
    x = 11,995,868.70/3,605.42
  6. Step 6: Final answer
    x = 3,327.18

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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.