Home / 3,619.75-5,429.62-2,378.18

Finding the Fourth Proportional to 3,619.75, 5,429.62 and 2,378.18

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Solution

The fourth proportional to 3,619.75, 5,429.62 and 2,378.18 is: 3,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.75 : 5,429.62 = 2,378.18 : x
  2. Step 2: Convert to fraction form
    3,619.75/5,429.62 = 2,378.18/x
  3. Step 3: Cross multiply
    3,619.75x = 5,429.62 × 2,378.18
  4. Step 4: Simplify right side
    3,619.75x = 12,912,613.69
  5. Step 5: Solve for x
    x = 12,912,613.69/3,619.75
  6. Step 6: Final answer
    x = 3,567.27

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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.