Home / 3,926.69-5,418.80-2,134.15

Finding the Fourth Proportional to 3,926.69, 5,418.80 and 2,134.15

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Solution

The fourth proportional to 3,926.69, 5,418.80 and 2,134.15 is: 2,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.69 : 5,418.80 = 2,134.15 : x
  2. Step 2: Convert to fraction form
    3,926.69/5,418.80 = 2,134.15/x
  3. Step 3: Cross multiply
    3,926.69x = 5,418.80 × 2,134.15
  4. Step 4: Simplify right side
    3,926.69x = 11,564,532.02
  5. Step 5: Solve for x
    x = 11,564,532.02/3,926.69
  6. Step 6: Final answer
    x = 2,945.11

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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.