Home / 3,855.26-5,321.30-2,363.78

Finding the Fourth Proportional to 3,855.26, 5,321.30 and 2,363.78

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Solution

The fourth proportional to 3,855.26, 5,321.30 and 2,363.78 is: 3,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.26 : 5,321.30 = 2,363.78 : x
  2. Step 2: Convert to fraction form
    3,855.26/5,321.30 = 2,363.78/x
  3. Step 3: Cross multiply
    3,855.26x = 5,321.30 × 2,363.78
  4. Step 4: Simplify right side
    3,855.26x = 12,578,384.00
  5. Step 5: Solve for x
    x = 12,578,384.00/3,855.26
  6. Step 6: Final answer
    x = 3,262.65

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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.