Home / 3,719.85-5,131.92-2,227.23

Finding the Fourth Proportional to 3,719.85, 5,131.92 and 2,227.23

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Solution

The fourth proportional to 3,719.85, 5,131.92 and 2,227.23 is: 3,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.85 : 5,131.92 = 2,227.23 : x
  2. Step 2: Convert to fraction form
    3,719.85/5,131.92 = 2,227.23/x
  3. Step 3: Cross multiply
    3,719.85x = 5,131.92 × 2,227.23
  4. Step 4: Simplify right side
    3,719.85x = 11,429,966.18
  5. Step 5: Solve for x
    x = 11,429,966.18/3,719.85
  6. Step 6: Final answer
    x = 3,072.70

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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.