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Finding the Fourth Proportional to 2,778.53, 3,834.33 and 1,536.53

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Solution

The fourth proportional to 2,778.53, 3,834.33 and 1,536.53 is: 2,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.53 : 3,834.33 = 1,536.53 : x
  2. Step 2: Convert to fraction form
    2,778.53/3,834.33 = 1,536.53/x
  3. Step 3: Cross multiply
    2,778.53x = 3,834.33 × 1,536.53
  4. Step 4: Simplify right side
    2,778.53x = 5,891,555.39
  5. Step 5: Solve for x
    x = 5,891,555.39/2,778.53
  6. Step 6: Final answer
    x = 2,120.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.