Home / 6,919.84-10,379.88-2,175.86

Finding the Fourth Proportional to 6,919.84, 10,379.88 and 2,175.86

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Solution

The fourth proportional to 6,919.84, 10,379.88 and 2,175.86 is: 3,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.84 : 10,379.88 = 2,175.86 : x
  2. Step 2: Convert to fraction form
    6,919.84/10,379.88 = 2,175.86/x
  3. Step 3: Cross multiply
    6,919.84x = 10,379.88 × 2,175.86
  4. Step 4: Simplify right side
    6,919.84x = 22,585,105.64
  5. Step 5: Solve for x
    x = 22,585,105.64/6,919.84
  6. Step 6: Final answer
    x = 3,263.82

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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.