Home / 2,206.50-3,311.25-907.95

Finding the Fourth Proportional to 2,206.50, 3,311.25 and 907.95

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Solution

The fourth proportional to 2,206.50, 3,311.25 and 907.95 is: 1,362.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.50 : 3,311.25 = 907.95 : x
  2. Step 2: Convert to fraction form
    2,206.50/3,311.25 = 907.95/x
  3. Step 3: Cross multiply
    2,206.50x = 3,311.25 × 907.95
  4. Step 4: Simplify right side
    2,206.50x = 3,006,449.44
  5. Step 5: Solve for x
    x = 3,006,449.44/2,206.50
  6. Step 6: Final answer
    x = 1,362.54

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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.