Home / 6,423.39-9,628.38-3,131.96

Finding the Fourth Proportional to 6,423.39, 9,628.38 and 3,131.96

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Solution

The fourth proportional to 6,423.39, 9,628.38 and 3,131.96 is: 4,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.39 : 9,628.38 = 3,131.96 : x
  2. Step 2: Convert to fraction form
    6,423.39/9,628.38 = 3,131.96/x
  3. Step 3: Cross multiply
    6,423.39x = 9,628.38 × 3,131.96
  4. Step 4: Simplify right side
    6,423.39x = 30,155,652.88
  5. Step 5: Solve for x
    x = 30,155,652.88/6,423.39
  6. Step 6: Final answer
    x = 4,694.66

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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.