Home / 7,474.28-11,212.90-2,209.39

Finding the Fourth Proportional to 7,474.28, 11,212.90 and 2,209.39

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Solution

The fourth proportional to 7,474.28, 11,212.90 and 2,209.39 is: 3,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.28 : 11,212.90 = 2,209.39 : x
  2. Step 2: Convert to fraction form
    7,474.28/11,212.90 = 2,209.39/x
  3. Step 3: Cross multiply
    7,474.28x = 11,212.90 × 2,209.39
  4. Step 4: Simplify right side
    7,474.28x = 24,773,669.13
  5. Step 5: Solve for x
    x = 24,773,669.13/7,474.28
  6. Step 6: Final answer
    x = 3,314.52

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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.