Home / 6,384.29-8,809.69-3,993.80

Finding the Fourth Proportional to 6,384.29, 8,809.69 and 3,993.80

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Solution

The fourth proportional to 6,384.29, 8,809.69 and 3,993.80 is: 5,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.29 : 8,809.69 = 3,993.80 : x
  2. Step 2: Convert to fraction form
    6,384.29/8,809.69 = 3,993.80/x
  3. Step 3: Cross multiply
    6,384.29x = 8,809.69 × 3,993.80
  4. Step 4: Simplify right side
    6,384.29x = 35,184,129.94
  5. Step 5: Solve for x
    x = 35,184,129.94/6,384.29
  6. Step 6: Final answer
    x = 5,511.05

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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.