Home / 6,517.12-9,777.50-2,137.66

Finding the Fourth Proportional to 6,517.12, 9,777.50 and 2,137.66

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Solution

The fourth proportional to 6,517.12, 9,777.50 and 2,137.66 is: 3,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.12 : 9,777.50 = 2,137.66 : x
  2. Step 2: Convert to fraction form
    6,517.12/9,777.50 = 2,137.66/x
  3. Step 3: Cross multiply
    6,517.12x = 9,777.50 × 2,137.66
  4. Step 4: Simplify right side
    6,517.12x = 20,900,970.65
  5. Step 5: Solve for x
    x = 20,900,970.65/6,517.12
  6. Step 6: Final answer
    x = 3,207.09

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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.