Home / 2,751.28-4,126.80-1,519.30

Finding the Fourth Proportional to 2,751.28, 4,126.80 and 1,519.30

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Solution

The fourth proportional to 2,751.28, 4,126.80 and 1,519.30 is: 2,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.28 : 4,126.80 = 1,519.30 : x
  2. Step 2: Convert to fraction form
    2,751.28/4,126.80 = 1,519.30/x
  3. Step 3: Cross multiply
    2,751.28x = 4,126.80 × 1,519.30
  4. Step 4: Simplify right side
    2,751.28x = 6,269,847.24
  5. Step 5: Solve for x
    x = 6,269,847.24/2,751.28
  6. Step 6: Final answer
    x = 2,278.88

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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.