Home / 6,261.11-8,640.43-3,428.43

Finding the Fourth Proportional to 6,261.11, 8,640.43 and 3,428.43

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Solution

The fourth proportional to 6,261.11, 8,640.43 and 3,428.43 is: 4,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.11 : 8,640.43 = 3,428.43 : x
  2. Step 2: Convert to fraction form
    6,261.11/8,640.43 = 3,428.43/x
  3. Step 3: Cross multiply
    6,261.11x = 8,640.43 × 3,428.43
  4. Step 4: Simplify right side
    6,261.11x = 29,623,109.42
  5. Step 5: Solve for x
    x = 29,623,109.42/6,261.11
  6. Step 6: Final answer
    x = 4,731.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.