Home / 3,605.17-5,411.10-2,221.21

Finding the Fourth Proportional to 3,605.17, 5,411.10 and 2,221.21

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Solution

The fourth proportional to 3,605.17, 5,411.10 and 2,221.21 is: 3,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.17 : 5,411.10 = 2,221.21 : x
  2. Step 2: Convert to fraction form
    3,605.17/5,411.10 = 2,221.21/x
  3. Step 3: Cross multiply
    3,605.17x = 5,411.10 × 2,221.21
  4. Step 4: Simplify right side
    3,605.17x = 12,019,202.96
  5. Step 5: Solve for x
    x = 12,019,202.96/3,605.17
  6. Step 6: Final answer
    x = 3,333.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.