Home / 7,961.54-11,942.43-3,031.45

Finding the Fourth Proportional to 7,961.54, 11,942.43 and 3,031.45

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Solution

The fourth proportional to 7,961.54, 11,942.43 and 3,031.45 is: 4,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.54 : 11,942.43 = 3,031.45 : x
  2. Step 2: Convert to fraction form
    7,961.54/11,942.43 = 3,031.45/x
  3. Step 3: Cross multiply
    7,961.54x = 11,942.43 × 3,031.45
  4. Step 4: Simplify right side
    7,961.54x = 36,202,882.98
  5. Step 5: Solve for x
    x = 36,202,882.98/7,961.54
  6. Step 6: Final answer
    x = 4,547.22

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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.