Home / 7,479.94-11,221.14-2,801.56

Finding the Fourth Proportional to 7,479.94, 11,221.14 and 2,801.56

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Solution

The fourth proportional to 7,479.94, 11,221.14 and 2,801.56 is: 4,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.94 : 11,221.14 = 2,801.56 : x
  2. Step 2: Convert to fraction form
    7,479.94/11,221.14 = 2,801.56/x
  3. Step 3: Cross multiply
    7,479.94x = 11,221.14 × 2,801.56
  4. Step 4: Simplify right side
    7,479.94x = 31,436,696.98
  5. Step 5: Solve for x
    x = 31,436,696.98/7,479.94
  6. Step 6: Final answer
    x = 4,202.80

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1.5x scale

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.