Home / 6,638.36-9,160.87-3,654.12

Finding the Fourth Proportional to 6,638.36, 9,160.87 and 3,654.12

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Solution

The fourth proportional to 6,638.36, 9,160.87 and 3,654.12 is: 5,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.36 : 9,160.87 = 3,654.12 : x
  2. Step 2: Convert to fraction form
    6,638.36/9,160.87 = 3,654.12/x
  3. Step 3: Cross multiply
    6,638.36x = 9,160.87 × 3,654.12
  4. Step 4: Simplify right side
    6,638.36x = 33,474,872.48
  5. Step 5: Solve for x
    x = 33,474,872.48/6,638.36
  6. Step 6: Final answer
    x = 5,042.64

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1.5x scale

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.