Home / 6,517.40-9,789.15-3,890.03

Finding the Fourth Proportional to 6,517.40, 9,789.15 and 3,890.03

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Solution

The fourth proportional to 6,517.40, 9,789.15 and 3,890.03 is: 5,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.40 : 9,789.15 = 3,890.03 : x
  2. Step 2: Convert to fraction form
    6,517.40/9,789.15 = 3,890.03/x
  3. Step 3: Cross multiply
    6,517.40x = 9,789.15 × 3,890.03
  4. Step 4: Simplify right side
    6,517.40x = 38,080,038.23
  5. Step 5: Solve for x
    x = 38,080,038.23/6,517.40
  6. Step 6: Final answer
    x = 5,842.83

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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.