Home / 4,208.04-6,311.82-1,286.12

Finding the Fourth Proportional to 4,208.04, 6,311.82 and 1,286.12

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Solution

The fourth proportional to 4,208.04, 6,311.82 and 1,286.12 is: 1,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.04 : 6,311.82 = 1,286.12 : x
  2. Step 2: Convert to fraction form
    4,208.04/6,311.82 = 1,286.12/x
  3. Step 3: Cross multiply
    4,208.04x = 6,311.82 × 1,286.12
  4. Step 4: Simplify right side
    4,208.04x = 8,117,726.38
  5. Step 5: Solve for x
    x = 8,117,726.38/4,208.04
  6. Step 6: Final answer
    x = 1,929.10

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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.