Home / 3,780.20-5,213.36-2,454.33

Finding the Fourth Proportional to 3,780.20, 5,213.36 and 2,454.33

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Solution

The fourth proportional to 3,780.20, 5,213.36 and 2,454.33 is: 3,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.20 : 5,213.36 = 2,454.33 : x
  2. Step 2: Convert to fraction form
    3,780.20/5,213.36 = 2,454.33/x
  3. Step 3: Cross multiply
    3,780.20x = 5,213.36 × 2,454.33
  4. Step 4: Simplify right side
    3,780.20x = 12,795,331.53
  5. Step 5: Solve for x
    x = 12,795,331.53/3,780.20
  6. Step 6: Final answer
    x = 3,384.83

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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.