Home / 3,240.39-4,860.60-1,778.75

Finding the Fourth Proportional to 3,240.39, 4,860.60 and 1,778.75

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Solution

The fourth proportional to 3,240.39, 4,860.60 and 1,778.75 is: 2,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.39 : 4,860.60 = 1,778.75 : x
  2. Step 2: Convert to fraction form
    3,240.39/4,860.60 = 1,778.75/x
  3. Step 3: Cross multiply
    3,240.39x = 4,860.60 × 1,778.75
  4. Step 4: Simplify right side
    3,240.39x = 8,645,767.95
  5. Step 5: Solve for x
    x = 8,645,767.95/3,240.39
  6. Step 6: Final answer
    x = 2,668.13

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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.