Home / 7,578.53-11,346.83-3,872.78

Finding the Fourth Proportional to 7,578.53, 11,346.83 and 3,872.78

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Solution

The fourth proportional to 7,578.53, 11,346.83 and 3,872.78 is: 5,798.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.53 : 11,346.83 = 3,872.78 : x
  2. Step 2: Convert to fraction form
    7,578.53/11,346.83 = 3,872.78/x
  3. Step 3: Cross multiply
    7,578.53x = 11,346.83 × 3,872.78
  4. Step 4: Simplify right side
    7,578.53x = 43,943,776.29
  5. Step 5: Solve for x
    x = 43,943,776.29/7,578.53
  6. Step 6: Final answer
    x = 5,798.46

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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.