Home / 4,431.12-6,643.80-2,240.88

Finding the Fourth Proportional to 4,431.12, 6,643.80 and 2,240.88

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Solution

The fourth proportional to 4,431.12, 6,643.80 and 2,240.88 is: 3,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.12 : 6,643.80 = 2,240.88 : x
  2. Step 2: Convert to fraction form
    4,431.12/6,643.80 = 2,240.88/x
  3. Step 3: Cross multiply
    4,431.12x = 6,643.80 × 2,240.88
  4. Step 4: Simplify right side
    4,431.12x = 14,887,958.54
  5. Step 5: Solve for x
    x = 14,887,958.54/4,431.12
  6. Step 6: Final answer
    x = 3,359.86

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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.