Home / 6,638.31-9,160.88-3,654.13

Finding the Fourth Proportional to 6,638.31, 9,160.88 and 3,654.13

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Solution

The fourth proportional to 6,638.31, 9,160.88 and 3,654.13 is: 5,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.31 : 9,160.88 = 3,654.13 : x
  2. Step 2: Convert to fraction form
    6,638.31/9,160.88 = 3,654.13/x
  3. Step 3: Cross multiply
    6,638.31x = 9,160.88 × 3,654.13
  4. Step 4: Simplify right side
    6,638.31x = 33,474,988.08
  5. Step 5: Solve for x
    x = 33,474,988.08/6,638.31
  6. Step 6: Final answer
    x = 5,042.69

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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.