Home / 6,351.29-8,764.50-3,518.78

Finding the Fourth Proportional to 6,351.29, 8,764.50 and 3,518.78

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Solution

The fourth proportional to 6,351.29, 8,764.50 and 3,518.78 is: 4,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.29 : 8,764.50 = 3,518.78 : x
  2. Step 2: Convert to fraction form
    6,351.29/8,764.50 = 3,518.78/x
  3. Step 3: Cross multiply
    6,351.29x = 8,764.50 × 3,518.78
  4. Step 4: Simplify right side
    6,351.29x = 30,840,316.68
  5. Step 5: Solve for x
    x = 30,840,316.68/6,351.29
  6. Step 6: Final answer
    x = 4,855.76

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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.