Home / 3,278.50-4,524.28-1,786.43

Finding the Fourth Proportional to 3,278.50, 4,524.28 and 1,786.43

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Solution

The fourth proportional to 3,278.50, 4,524.28 and 1,786.43 is: 2,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.50 : 4,524.28 = 1,786.43 : x
  2. Step 2: Convert to fraction form
    3,278.50/4,524.28 = 1,786.43/x
  3. Step 3: Cross multiply
    3,278.50x = 4,524.28 × 1,786.43
  4. Step 4: Simplify right side
    3,278.50x = 8,082,311.90
  5. Step 5: Solve for x
    x = 8,082,311.90/3,278.50
  6. Step 6: Final answer
    x = 2,465.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.