Home / 3,731.85-5,150.07-2,220.21

Finding the Fourth Proportional to 3,731.85, 5,150.07 and 2,220.21

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Solution

The fourth proportional to 3,731.85, 5,150.07 and 2,220.21 is: 3,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.85 : 5,150.07 = 2,220.21 : x
  2. Step 2: Convert to fraction form
    3,731.85/5,150.07 = 2,220.21/x
  3. Step 3: Cross multiply
    3,731.85x = 5,150.07 × 2,220.21
  4. Step 4: Simplify right side
    3,731.85x = 11,434,236.91
  5. Step 5: Solve for x
    x = 11,434,236.91/3,731.85
  6. Step 6: Final answer
    x = 3,063.96

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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.