Home / 4,207.98-6,311.74-1,286.04

Finding the Fourth Proportional to 4,207.98, 6,311.74 and 1,286.04

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Solution

The fourth proportional to 4,207.98, 6,311.74 and 1,286.04 is: 1,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.98 : 6,311.74 = 1,286.04 : x
  2. Step 2: Convert to fraction form
    4,207.98/6,311.74 = 1,286.04/x
  3. Step 3: Cross multiply
    4,207.98x = 6,311.74 × 1,286.04
  4. Step 4: Simplify right side
    4,207.98x = 8,117,150.11
  5. Step 5: Solve for x
    x = 8,117,150.11/4,207.98
  6. Step 6: Final answer
    x = 1,928.99

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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.