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Finding the Fourth Proportional to 2,522.81, 3,784.83 and 791.44

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Solution

The fourth proportional to 2,522.81, 3,784.83 and 791.44 is: 1,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,522.81 : 3,784.83 = 791.44 : x
  2. Step 2: Convert to fraction form
    2,522.81/3,784.83 = 791.44/x
  3. Step 3: Cross multiply
    2,522.81x = 3,784.83 × 791.44
  4. Step 4: Simplify right side
    2,522.81x = 2,995,465.86
  5. Step 5: Solve for x
    x = 2,995,465.86/2,522.81
  6. Step 6: Final answer
    x = 1,187.35

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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.