Home / 3,719.87-5,133.21-2,227.45

Finding the Fourth Proportional to 3,719.87, 5,133.21 and 2,227.45

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Solution

The fourth proportional to 3,719.87, 5,133.21 and 2,227.45 is: 3,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.87 : 5,133.21 = 2,227.45 : x
  2. Step 2: Convert to fraction form
    3,719.87/5,133.21 = 2,227.45/x
  3. Step 3: Cross multiply
    3,719.87x = 5,133.21 × 2,227.45
  4. Step 4: Simplify right side
    3,719.87x = 11,433,942.95
  5. Step 5: Solve for x
    x = 11,433,942.95/3,719.87
  6. Step 6: Final answer
    x = 3,073.75

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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.