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Finding the Fourth Proportional to 3,883.35, 5,324.05 and 3,813.40

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Solution

The fourth proportional to 3,883.35, 5,324.05 and 3,813.40 is: 5,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.35 : 5,324.05 = 3,813.40 : x
  2. Step 2: Convert to fraction form
    3,883.35/5,324.05 = 3,813.40/x
  3. Step 3: Cross multiply
    3,883.35x = 5,324.05 × 3,813.40
  4. Step 4: Simplify right side
    3,883.35x = 20,302,732.27
  5. Step 5: Solve for x
    x = 20,302,732.27/3,883.35
  6. Step 6: Final answer
    x = 5,228.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.