Home / 2,219.86-3,331.46-834.56

Finding the Fourth Proportional to 2,219.86, 3,331.46 and 834.56

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Solution

The fourth proportional to 2,219.86, 3,331.46 and 834.56 is: 1,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.86 : 3,331.46 = 834.56 : x
  2. Step 2: Convert to fraction form
    2,219.86/3,331.46 = 834.56/x
  3. Step 3: Cross multiply
    2,219.86x = 3,331.46 × 834.56
  4. Step 4: Simplify right side
    2,219.86x = 2,780,299.08
  5. Step 5: Solve for x
    x = 2,780,299.08/2,219.86
  6. Step 6: Final answer
    x = 1,252.47

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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.