Home / 2,621.73-3,935.02-1,324.11

Finding the Fourth Proportional to 2,621.73, 3,935.02 and 1,324.11

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Solution

The fourth proportional to 2,621.73, 3,935.02 and 1,324.11 is: 1,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.73 : 3,935.02 = 1,324.11 : x
  2. Step 2: Convert to fraction form
    2,621.73/3,935.02 = 1,324.11/x
  3. Step 3: Cross multiply
    2,621.73x = 3,935.02 × 1,324.11
  4. Step 4: Simplify right side
    2,621.73x = 5,210,399.33
  5. Step 5: Solve for x
    x = 5,210,399.33/2,621.73
  6. Step 6: Final answer
    x = 1,987.39

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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.