Home / 4,208.38-6,312.34-1,286.69

Finding the Fourth Proportional to 4,208.38, 6,312.34 and 1,286.69

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Solution

The fourth proportional to 4,208.38, 6,312.34 and 1,286.69 is: 1,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.38 : 6,312.34 = 1,286.69 : x
  2. Step 2: Convert to fraction form
    4,208.38/6,312.34 = 1,286.69/x
  3. Step 3: Cross multiply
    4,208.38x = 6,312.34 × 1,286.69
  4. Step 4: Simplify right side
    4,208.38x = 8,121,989.98
  5. Step 5: Solve for x
    x = 8,121,989.98/4,208.38
  6. Step 6: Final answer
    x = 1,929.96

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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.