Home / 4,207.77-6,311.39-1,286.10

Finding the Fourth Proportional to 4,207.77, 6,311.39 and 1,286.10

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Solution

The fourth proportional to 4,207.77, 6,311.39 and 1,286.10 is: 1,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.77 : 6,311.39 = 1,286.10 : x
  2. Step 2: Convert to fraction form
    4,207.77/6,311.39 = 1,286.10/x
  3. Step 3: Cross multiply
    4,207.77x = 6,311.39 × 1,286.10
  4. Step 4: Simplify right side
    4,207.77x = 8,117,072.25
  5. Step 5: Solve for x
    x = 8,117,072.25/4,207.77
  6. Step 6: Final answer
    x = 1,929.07

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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.