Home / 5,156.30-7,731.87-2,194.28

Finding the Fourth Proportional to 5,156.30, 7,731.87 and 2,194.28

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Solution

The fourth proportional to 5,156.30, 7,731.87 and 2,194.28 is: 3,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.30 : 7,731.87 = 2,194.28 : x
  2. Step 2: Convert to fraction form
    5,156.30/7,731.87 = 2,194.28/x
  3. Step 3: Cross multiply
    5,156.30x = 7,731.87 × 2,194.28
  4. Step 4: Simplify right side
    5,156.30x = 16,965,849.04
  5. Step 5: Solve for x
    x = 16,965,849.04/5,156.30
  6. Step 6: Final answer
    x = 3,290.32

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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.