Home / 5,179.38-7,783.02-2,715.99

Finding the Fourth Proportional to 5,179.38, 7,783.02 and 2,715.99

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Solution

The fourth proportional to 5,179.38, 7,783.02 and 2,715.99 is: 4,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.38 : 7,783.02 = 2,715.99 : x
  2. Step 2: Convert to fraction form
    5,179.38/7,783.02 = 2,715.99/x
  3. Step 3: Cross multiply
    5,179.38x = 7,783.02 × 2,715.99
  4. Step 4: Simplify right side
    5,179.38x = 21,138,604.49
  5. Step 5: Solve for x
    x = 21,138,604.49/5,179.38
  6. Step 6: Final answer
    x = 4,081.30

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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.