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Finding the Fourth Proportional to 3,877.76, 5,816.64 and 3,299.42

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Solution

The fourth proportional to 3,877.76, 5,816.64 and 3,299.42 is: 4,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.76 : 5,816.64 = 3,299.42 : x
  2. Step 2: Convert to fraction form
    3,877.76/5,816.64 = 3,299.42/x
  3. Step 3: Cross multiply
    3,877.76x = 5,816.64 × 3,299.42
  4. Step 4: Simplify right side
    3,877.76x = 19,191,538.35
  5. Step 5: Solve for x
    x = 19,191,538.35/3,877.76
  6. Step 6: Final answer
    x = 4,949.13

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Similar ratio
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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.