Home / 5,108.53-7,049.75-2,839.85

Finding the Fourth Proportional to 5,108.53, 7,049.75 and 2,839.85

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Solution

The fourth proportional to 5,108.53, 7,049.75 and 2,839.85 is: 3,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.53 : 7,049.75 = 2,839.85 : x
  2. Step 2: Convert to fraction form
    5,108.53/7,049.75 = 2,839.85/x
  3. Step 3: Cross multiply
    5,108.53x = 7,049.75 × 2,839.85
  4. Step 4: Simplify right side
    5,108.53x = 20,020,235.96
  5. Step 5: Solve for x
    x = 20,020,235.96/5,108.53
  6. Step 6: Final answer
    x = 3,918.98

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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.