Home / 2,621.71-3,928.98-1,449.97

Finding the Fourth Proportional to 2,621.71, 3,928.98 and 1,449.97

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Solution

The fourth proportional to 2,621.71, 3,928.98 and 1,449.97 is: 2,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.71 : 3,928.98 = 1,449.97 : x
  2. Step 2: Convert to fraction form
    2,621.71/3,928.98 = 1,449.97/x
  3. Step 3: Cross multiply
    2,621.71x = 3,928.98 × 1,449.97
  4. Step 4: Simplify right side
    2,621.71x = 5,696,903.13
  5. Step 5: Solve for x
    x = 5,696,903.13/2,621.71
  6. Step 6: Final answer
    x = 2,172.97

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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.