Home / 3,205.14-4,423.20-1,860.64

Finding the Fourth Proportional to 3,205.14, 4,423.20 and 1,860.64

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Solution

The fourth proportional to 3,205.14, 4,423.20 and 1,860.64 is: 2,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.14 : 4,423.20 = 1,860.64 : x
  2. Step 2: Convert to fraction form
    3,205.14/4,423.20 = 1,860.64/x
  3. Step 3: Cross multiply
    3,205.14x = 4,423.20 × 1,860.64
  4. Step 4: Simplify right side
    3,205.14x = 8,229,982.85
  5. Step 5: Solve for x
    x = 8,229,982.85/3,205.14
  6. Step 6: Final answer
    x = 2,567.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.