Home / 5,121.38-7,674.87-2,926.82

Finding the Fourth Proportional to 5,121.38, 7,674.87 and 2,926.82

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Solution

The fourth proportional to 5,121.38, 7,674.87 and 2,926.82 is: 4,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.38 : 7,674.87 = 2,926.82 : x
  2. Step 2: Convert to fraction form
    5,121.38/7,674.87 = 2,926.82/x
  3. Step 3: Cross multiply
    5,121.38x = 7,674.87 × 2,926.82
  4. Step 4: Simplify right side
    5,121.38x = 22,462,963.01
  5. Step 5: Solve for x
    x = 22,462,963.01/5,121.38
  6. Step 6: Final answer
    x = 4,386.12

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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.