Home / 5,769.88-8,655.65-1,819.80

Finding the Fourth Proportional to 5,769.88, 8,655.65 and 1,819.80

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Solution

The fourth proportional to 5,769.88, 8,655.65 and 1,819.80 is: 2,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.88 : 8,655.65 = 1,819.80 : x
  2. Step 2: Convert to fraction form
    5,769.88/8,655.65 = 1,819.80/x
  3. Step 3: Cross multiply
    5,769.88x = 8,655.65 × 1,819.80
  4. Step 4: Simplify right side
    5,769.88x = 15,751,530.23
  5. Step 5: Solve for x
    x = 15,751,530.23/5,769.88
  6. Step 6: Final answer
    x = 2,729.96

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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.