Home / 6,747.98-10,129.25-2,855.12

Finding the Fourth Proportional to 6,747.98, 10,129.25 and 2,855.12

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Solution

The fourth proportional to 6,747.98, 10,129.25 and 2,855.12 is: 4,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.98 : 10,129.25 = 2,855.12 : x
  2. Step 2: Convert to fraction form
    6,747.98/10,129.25 = 2,855.12/x
  3. Step 3: Cross multiply
    6,747.98x = 10,129.25 × 2,855.12
  4. Step 4: Simplify right side
    6,747.98x = 28,920,180.75
  5. Step 5: Solve for x
    x = 28,920,180.75/6,747.98
  6. Step 6: Final answer
    x = 4,285.76

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1.5x scale

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.