Home / 5,126.71-7,074.85-2,768.85

Finding the Fourth Proportional to 5,126.71, 7,074.85 and 2,768.85

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Solution

The fourth proportional to 5,126.71, 7,074.85 and 2,768.85 is: 3,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.71 : 7,074.85 = 2,768.85 : x
  2. Step 2: Convert to fraction form
    5,126.71/7,074.85 = 2,768.85/x
  3. Step 3: Cross multiply
    5,126.71x = 7,074.85 × 2,768.85
  4. Step 4: Simplify right side
    5,126.71x = 19,589,163.05
  5. Step 5: Solve for x
    x = 19,589,163.05/5,126.71
  6. Step 6: Final answer
    x = 3,821.00

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1.5x scale

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.