Home / 3,263.40-4,891.41-1,621.08

Finding the Fourth Proportional to 3,263.40, 4,891.41 and 1,621.08

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Solution

The fourth proportional to 3,263.40, 4,891.41 and 1,621.08 is: 2,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,263.40 : 4,891.41 = 1,621.08 : x
  2. Step 2: Convert to fraction form
    3,263.40/4,891.41 = 1,621.08/x
  3. Step 3: Cross multiply
    3,263.40x = 4,891.41 × 1,621.08
  4. Step 4: Simplify right side
    3,263.40x = 7,929,366.92
  5. Step 5: Solve for x
    x = 7,929,366.92/3,263.40
  6. Step 6: Final answer
    x = 2,429.79

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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.