Home / 2,409.31-3,327.59-1,621.99

Finding the Fourth Proportional to 2,409.31, 3,327.59 and 1,621.99

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Solution

The fourth proportional to 2,409.31, 3,327.59 and 1,621.99 is: 2,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.31 : 3,327.59 = 1,621.99 : x
  2. Step 2: Convert to fraction form
    2,409.31/3,327.59 = 1,621.99/x
  3. Step 3: Cross multiply
    2,409.31x = 3,327.59 × 1,621.99
  4. Step 4: Simplify right side
    2,409.31x = 5,397,317.70
  5. Step 5: Solve for x
    x = 5,397,317.70/2,409.31
  6. Step 6: Final answer
    x = 2,240.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.