Home / 3,216.64-4,439.60-2,036.88

Finding the Fourth Proportional to 3,216.64, 4,439.60 and 2,036.88

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Solution

The fourth proportional to 3,216.64, 4,439.60 and 2,036.88 is: 2,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.64 : 4,439.60 = 2,036.88 : x
  2. Step 2: Convert to fraction form
    3,216.64/4,439.60 = 2,036.88/x
  3. Step 3: Cross multiply
    3,216.64x = 4,439.60 × 2,036.88
  4. Step 4: Simplify right side
    3,216.64x = 9,042,932.45
  5. Step 5: Solve for x
    x = 9,042,932.45/3,216.64
  6. Step 6: Final answer
    x = 2,811.30

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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.