Home / 7,406.25-11,109.78-2,212.53

Finding the Fourth Proportional to 7,406.25, 11,109.78 and 2,212.53

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Solution

The fourth proportional to 7,406.25, 11,109.78 and 2,212.53 is: 3,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.25 : 11,109.78 = 2,212.53 : x
  2. Step 2: Convert to fraction form
    7,406.25/11,109.78 = 2,212.53/x
  3. Step 3: Cross multiply
    7,406.25x = 11,109.78 × 2,212.53
  4. Step 4: Simplify right side
    7,406.25x = 24,580,721.54
  5. Step 5: Solve for x
    x = 24,580,721.54/7,406.25
  6. Step 6: Final answer
    x = 3,318.92

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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.