Home / 7,742.84-11,615.66-2,819.39

Finding the Fourth Proportional to 7,742.84, 11,615.66 and 2,819.39

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Solution

The fourth proportional to 7,742.84, 11,615.66 and 2,819.39 is: 4,229.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.84 : 11,615.66 = 2,819.39 : x
  2. Step 2: Convert to fraction form
    7,742.84/11,615.66 = 2,819.39/x
  3. Step 3: Cross multiply
    7,742.84x = 11,615.66 × 2,819.39
  4. Step 4: Simplify right side
    7,742.84x = 32,749,075.65
  5. Step 5: Solve for x
    x = 32,749,075.65/7,742.84
  6. Step 6: Final answer
    x = 4,229.59

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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.