Home / 3,438.12-5,157.18-2,206.11

Finding the Fourth Proportional to 3,438.12, 5,157.18 and 2,206.11

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Solution

The fourth proportional to 3,438.12, 5,157.18 and 2,206.11 is: 3,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.12 : 5,157.18 = 2,206.11 : x
  2. Step 2: Convert to fraction form
    3,438.12/5,157.18 = 2,206.11/x
  3. Step 3: Cross multiply
    3,438.12x = 5,157.18 × 2,206.11
  4. Step 4: Simplify right side
    3,438.12x = 11,377,306.37
  5. Step 5: Solve for x
    x = 11,377,306.37/3,438.12
  6. Step 6: Final answer
    x = 3,309.17

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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.