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Finding the Fourth Proportional to 2,522.07, 3,783.11 and 878.18

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Solution

The fourth proportional to 2,522.07, 3,783.11 and 878.18 is: 1,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,522.07 : 3,783.11 = 878.18 : x
  2. Step 2: Convert to fraction form
    2,522.07/3,783.11 = 878.18/x
  3. Step 3: Cross multiply
    2,522.07x = 3,783.11 × 878.18
  4. Step 4: Simplify right side
    2,522.07x = 3,322,251.54
  5. Step 5: Solve for x
    x = 3,322,251.54/2,522.07
  6. Step 6: Final answer
    x = 1,317.27

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1.5x scale

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.