Home / 7,960.90-11,942.80-2,624.38

Finding the Fourth Proportional to 7,960.90, 11,942.80 and 2,624.38

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Solution

The fourth proportional to 7,960.90, 11,942.80 and 2,624.38 is: 3,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.90 : 11,942.80 = 2,624.38 : x
  2. Step 2: Convert to fraction form
    7,960.90/11,942.80 = 2,624.38/x
  3. Step 3: Cross multiply
    7,960.90x = 11,942.80 × 2,624.38
  4. Step 4: Simplify right side
    7,960.90x = 31,342,445.46
  5. Step 5: Solve for x
    x = 31,342,445.46/7,960.90
  6. Step 6: Final answer
    x = 3,937.05

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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.