Home / 3,476.45-5,216.70-1,286.69

Finding the Fourth Proportional to 3,476.45, 5,216.70 and 1,286.69

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Solution

The fourth proportional to 3,476.45, 5,216.70 and 1,286.69 is: 1,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.45 : 5,216.70 = 1,286.69 : x
  2. Step 2: Convert to fraction form
    3,476.45/5,216.70 = 1,286.69/x
  3. Step 3: Cross multiply
    3,476.45x = 5,216.70 × 1,286.69
  4. Step 4: Simplify right side
    3,476.45x = 6,712,249.64
  5. Step 5: Solve for x
    x = 6,712,249.64/3,476.45
  6. Step 6: Final answer
    x = 1,930.78

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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.