Home / 3,813.32-5,263.99-2,321.78

Finding the Fourth Proportional to 3,813.32, 5,263.99 and 2,321.78

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Solution

The fourth proportional to 3,813.32, 5,263.99 and 2,321.78 is: 3,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.32 : 5,263.99 = 2,321.78 : x
  2. Step 2: Convert to fraction form
    3,813.32/5,263.99 = 2,321.78/x
  3. Step 3: Cross multiply
    3,813.32x = 5,263.99 × 2,321.78
  4. Step 4: Simplify right side
    3,813.32x = 12,221,794.58
  5. Step 5: Solve for x
    x = 12,221,794.58/3,813.32
  6. Step 6: Final answer
    x = 3,205.03

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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.