Home / 2,212.04-3,318.35-750.80

Finding the Fourth Proportional to 2,212.04, 3,318.35 and 750.80

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Solution

The fourth proportional to 2,212.04, 3,318.35 and 750.80 is: 1,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.04 : 3,318.35 = 750.80 : x
  2. Step 2: Convert to fraction form
    2,212.04/3,318.35 = 750.80/x
  3. Step 3: Cross multiply
    2,212.04x = 3,318.35 × 750.80
  4. Step 4: Simplify right side
    2,212.04x = 2,491,396.83
  5. Step 5: Solve for x
    x = 2,491,396.83/2,212.04
  6. Step 6: Final answer
    x = 1,126.29

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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.