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Finding the Fourth Proportional to 2,265.82, 3,400 and 1,225.80

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Solution

The fourth proportional to 2,265.82, 3,400 and 1,225.80 is: 1,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.82 : 3,400 = 1,225.80 : x
  2. Step 2: Convert to fraction form
    2,265.82/3,400 = 1,225.80/x
  3. Step 3: Cross multiply
    2,265.82x = 3,400 × 1,225.80
  4. Step 4: Simplify right side
    2,265.82x = 4,167,720
  5. Step 5: Solve for x
    x = 4,167,720/2,265.82
  6. Step 6: Final answer
    x = 1,839.39

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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.