Home / 3,877.27-5,816.21-3,420.43

Finding the Fourth Proportional to 3,877.27, 5,816.21 and 3,420.43

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Solution

The fourth proportional to 3,877.27, 5,816.21 and 3,420.43 is: 5,130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.27 : 5,816.21 = 3,420.43 : x
  2. Step 2: Convert to fraction form
    3,877.27/5,816.21 = 3,420.43/x
  3. Step 3: Cross multiply
    3,877.27x = 5,816.21 × 3,420.43
  4. Step 4: Simplify right side
    3,877.27x = 19,893,907.53
  5. Step 5: Solve for x
    x = 19,893,907.53/3,877.27
  6. Step 6: Final answer
    x = 5,130.91

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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.