Home / 4,278.10-6,408.78-3,813.70

Finding the Fourth Proportional to 4,278.10, 6,408.78 and 3,813.70

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Solution

The fourth proportional to 4,278.10, 6,408.78 and 3,813.70 is: 5,713.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.10 : 6,408.78 = 3,813.70 : x
  2. Step 2: Convert to fraction form
    4,278.10/6,408.78 = 3,813.70/x
  3. Step 3: Cross multiply
    4,278.10x = 6,408.78 × 3,813.70
  4. Step 4: Simplify right side
    4,278.10x = 24,441,164.29
  5. Step 5: Solve for x
    x = 24,441,164.29/4,278.10
  6. Step 6: Final answer
    x = 5,713.09

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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.