Home / 5,122.78-7,688.49-2,046.94

Finding the Fourth Proportional to 5,122.78, 7,688.49 and 2,046.94

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Solution

The fourth proportional to 5,122.78, 7,688.49 and 2,046.94 is: 3,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.78 : 7,688.49 = 2,046.94 : x
  2. Step 2: Convert to fraction form
    5,122.78/7,688.49 = 2,046.94/x
  3. Step 3: Cross multiply
    5,122.78x = 7,688.49 × 2,046.94
  4. Step 4: Simplify right side
    5,122.78x = 15,737,877.72
  5. Step 5: Solve for x
    x = 15,737,877.72/5,122.78
  6. Step 6: Final answer
    x = 3,072.14

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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.