Home / 7,578.21-11,359.89-3,628.35

Finding the Fourth Proportional to 7,578.21, 11,359.89 and 3,628.35

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Solution

The fourth proportional to 7,578.21, 11,359.89 and 3,628.35 is: 5,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.21 : 11,359.89 = 3,628.35 : x
  2. Step 2: Convert to fraction form
    7,578.21/11,359.89 = 3,628.35/x
  3. Step 3: Cross multiply
    7,578.21x = 11,359.89 × 3,628.35
  4. Step 4: Simplify right side
    7,578.21x = 41,217,656.88
  5. Step 5: Solve for x
    x = 41,217,656.88/7,578.21
  6. Step 6: Final answer
    x = 5,438.97

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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.