Home / 6,817.80-10,207.65-3,686.61

Finding the Fourth Proportional to 6,817.80, 10,207.65 and 3,686.61

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Solution

The fourth proportional to 6,817.80, 10,207.65 and 3,686.61 is: 5,519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,817.80 : 10,207.65 = 3,686.61 : x
  2. Step 2: Convert to fraction form
    6,817.80/10,207.65 = 3,686.61/x
  3. Step 3: Cross multiply
    6,817.80x = 10,207.65 × 3,686.61
  4. Step 4: Simplify right side
    6,817.80x = 37,631,676.67
  5. Step 5: Solve for x
    x = 37,631,676.67/6,817.80
  6. Step 6: Final answer
    x = 5,519.62

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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.