Home / 4,938-6,813.85-2,813.54

Finding the Fourth Proportional to 4,938, 6,813.85 and 2,813.54

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Solution

The fourth proportional to 4,938, 6,813.85 and 2,813.54 is: 3,882.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938 : 6,813.85 = 2,813.54 : x
  2. Step 2: Convert to fraction form
    4,938/6,813.85 = 2,813.54/x
  3. Step 3: Cross multiply
    4,938x = 6,813.85 × 2,813.54
  4. Step 4: Simplify right side
    4,938x = 19,171,039.53
  5. Step 5: Solve for x
    x = 19,171,039.53/4,938
  6. Step 6: Final answer
    x = 3,882.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.