Home / 7,743.39-11,611.43-2,809.57

Finding the Fourth Proportional to 7,743.39, 11,611.43 and 2,809.57

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Solution

The fourth proportional to 7,743.39, 11,611.43 and 2,809.57 is: 4,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.39 : 11,611.43 = 2,809.57 : x
  2. Step 2: Convert to fraction form
    7,743.39/11,611.43 = 2,809.57/x
  3. Step 3: Cross multiply
    7,743.39x = 11,611.43 × 2,809.57
  4. Step 4: Simplify right side
    7,743.39x = 32,623,125.39
  5. Step 5: Solve for x
    x = 32,623,125.39/7,743.39
  6. Step 6: Final answer
    x = 4,213.03

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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.