Home / 3,878.17-5,351.76-2,199.73

Finding the Fourth Proportional to 3,878.17, 5,351.76 and 2,199.73

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Solution

The fourth proportional to 3,878.17, 5,351.76 and 2,199.73 is: 3,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.17 : 5,351.76 = 2,199.73 : x
  2. Step 2: Convert to fraction form
    3,878.17/5,351.76 = 2,199.73/x
  3. Step 3: Cross multiply
    3,878.17x = 5,351.76 × 2,199.73
  4. Step 4: Simplify right side
    3,878.17x = 11,772,427.02
  5. Step 5: Solve for x
    x = 11,772,427.02/3,878.17
  6. Step 6: Final answer
    x = 3,035.56

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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.