Home / 4,208.06-6,311.82-1,286.40

Finding the Fourth Proportional to 4,208.06, 6,311.82 and 1,286.40

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Solution

The fourth proportional to 4,208.06, 6,311.82 and 1,286.40 is: 1,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.06 : 6,311.82 = 1,286.40 : x
  2. Step 2: Convert to fraction form
    4,208.06/6,311.82 = 1,286.40/x
  3. Step 3: Cross multiply
    4,208.06x = 6,311.82 × 1,286.40
  4. Step 4: Simplify right side
    4,208.06x = 8,119,525.25
  5. Step 5: Solve for x
    x = 8,119,525.25/4,208.06
  6. Step 6: Final answer
    x = 1,929.52

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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.