Home / 3,778.35-5,213.86-2,099.76

Finding the Fourth Proportional to 3,778.35, 5,213.86 and 2,099.76

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Solution

The fourth proportional to 3,778.35, 5,213.86 and 2,099.76 is: 2,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.35 : 5,213.86 = 2,099.76 : x
  2. Step 2: Convert to fraction form
    3,778.35/5,213.86 = 2,099.76/x
  3. Step 3: Cross multiply
    3,778.35x = 5,213.86 × 2,099.76
  4. Step 4: Simplify right side
    3,778.35x = 10,947,854.67
  5. Step 5: Solve for x
    x = 10,947,854.67/3,778.35
  6. Step 6: Final answer
    x = 2,897.52

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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.