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Finding the Fourth Proportional to 2,414.77, 3,622.49 and 770.75

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Solution

The fourth proportional to 2,414.77, 3,622.49 and 770.75 is: 1,156.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,414.77 : 3,622.49 = 770.75 : x
  2. Step 2: Convert to fraction form
    2,414.77/3,622.49 = 770.75/x
  3. Step 3: Cross multiply
    2,414.77x = 3,622.49 × 770.75
  4. Step 4: Simplify right side
    2,414.77x = 2,792,034.17
  5. Step 5: Solve for x
    x = 2,792,034.17/2,414.77
  6. Step 6: Final answer
    x = 1,156.23

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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.