Home / 4,207.85-6,311.81-2,009.91

Finding the Fourth Proportional to 4,207.85, 6,311.81 and 2,009.91

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Solution

The fourth proportional to 4,207.85, 6,311.81 and 2,009.91 is: 3,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.85 : 6,311.81 = 2,009.91 : x
  2. Step 2: Convert to fraction form
    4,207.85/6,311.81 = 2,009.91/x
  3. Step 3: Cross multiply
    4,207.85x = 6,311.81 × 2,009.91
  4. Step 4: Simplify right side
    4,207.85x = 12,686,198.73
  5. Step 5: Solve for x
    x = 12,686,198.73/4,207.85
  6. Step 6: Final answer
    x = 3,014.89

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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.