Home / 6,402.82-9,605.39-3,115.91

Finding the Fourth Proportional to 6,402.82, 9,605.39 and 3,115.91

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Solution

The fourth proportional to 6,402.82, 9,605.39 and 3,115.91 is: 4,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.82 : 9,605.39 = 3,115.91 : x
  2. Step 2: Convert to fraction form
    6,402.82/9,605.39 = 3,115.91/x
  3. Step 3: Cross multiply
    6,402.82x = 9,605.39 × 3,115.91
  4. Step 4: Simplify right side
    6,402.82x = 29,929,515.18
  5. Step 5: Solve for x
    x = 29,929,515.18/6,402.82
  6. Step 6: Final answer
    x = 4,674.43

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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.