Home / 4,910.83-6,780.20-3,774.48

Finding the Fourth Proportional to 4,910.83, 6,780.20 and 3,774.48

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Solution

The fourth proportional to 4,910.83, 6,780.20 and 3,774.48 is: 5,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.83 : 6,780.20 = 3,774.48 : x
  2. Step 2: Convert to fraction form
    4,910.83/6,780.20 = 3,774.48/x
  3. Step 3: Cross multiply
    4,910.83x = 6,780.20 × 3,774.48
  4. Step 4: Simplify right side
    4,910.83x = 25,591,729.30
  5. Step 5: Solve for x
    x = 25,591,729.30/4,910.83
  6. Step 6: Final answer
    x = 5,211.28

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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.