Home / 3,216.96-4,443.48-2,378.88

Finding the Fourth Proportional to 3,216.96, 4,443.48 and 2,378.88

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Solution

The fourth proportional to 3,216.96, 4,443.48 and 2,378.88 is: 3,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.96 : 4,443.48 = 2,378.88 : x
  2. Step 2: Convert to fraction form
    3,216.96/4,443.48 = 2,378.88/x
  3. Step 3: Cross multiply
    3,216.96x = 4,443.48 × 2,378.88
  4. Step 4: Simplify right side
    3,216.96x = 10,570,505.70
  5. Step 5: Solve for x
    x = 10,570,505.70/3,216.96
  6. Step 6: Final answer
    x = 3,285.87

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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.