Home / 5,654.10-8,485.68-3,191.28

Finding the Fourth Proportional to 5,654.10, 8,485.68 and 3,191.28

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Solution

The fourth proportional to 5,654.10, 8,485.68 and 3,191.28 is: 4,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.10 : 8,485.68 = 3,191.28 : x
  2. Step 2: Convert to fraction form
    5,654.10/8,485.68 = 3,191.28/x
  3. Step 3: Cross multiply
    5,654.10x = 8,485.68 × 3,191.28
  4. Step 4: Simplify right side
    5,654.10x = 27,080,180.87
  5. Step 5: Solve for x
    x = 27,080,180.87/5,654.10
  6. Step 6: Final answer
    x = 4,789.48

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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.