Home / 4,225.28-6,338.80-1,628.96

Finding the Fourth Proportional to 4,225.28, 6,338.80 and 1,628.96

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Solution

The fourth proportional to 4,225.28, 6,338.80 and 1,628.96 is: 2,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,225.28 : 6,338.80 = 1,628.96 : x
  2. Step 2: Convert to fraction form
    4,225.28/6,338.80 = 1,628.96/x
  3. Step 3: Cross multiply
    4,225.28x = 6,338.80 × 1,628.96
  4. Step 4: Simplify right side
    4,225.28x = 10,325,651.65
  5. Step 5: Solve for x
    x = 10,325,651.65/4,225.28
  6. Step 6: Final answer
    x = 2,443.78

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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.