Home / 5,278.34-7,919.43-2,469.66

Finding the Fourth Proportional to 5,278.34, 7,919.43 and 2,469.66

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Solution

The fourth proportional to 5,278.34, 7,919.43 and 2,469.66 is: 3,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.34 : 7,919.43 = 2,469.66 : x
  2. Step 2: Convert to fraction form
    5,278.34/7,919.43 = 2,469.66/x
  3. Step 3: Cross multiply
    5,278.34x = 7,919.43 × 2,469.66
  4. Step 4: Simplify right side
    5,278.34x = 19,558,260.53
  5. Step 5: Solve for x
    x = 19,558,260.53/5,278.34
  6. Step 6: Final answer
    x = 3,705.38

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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.