Home / 7,740.47-11,614.68-3,791.65

Finding the Fourth Proportional to 7,740.47, 11,614.68 and 3,791.65

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Solution

The fourth proportional to 7,740.47, 11,614.68 and 3,791.65 is: 5,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.47 : 11,614.68 = 3,791.65 : x
  2. Step 2: Convert to fraction form
    7,740.47/11,614.68 = 3,791.65/x
  3. Step 3: Cross multiply
    7,740.47x = 11,614.68 × 3,791.65
  4. Step 4: Simplify right side
    7,740.47x = 44,038,846.00
  5. Step 5: Solve for x
    x = 44,038,846.00/7,740.47
  6. Step 6: Final answer
    x = 5,689.43

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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.