Home / 2,644.09-3,963.27-1,720.31

Finding the Fourth Proportional to 2,644.09, 3,963.27 and 1,720.31

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Solution

The fourth proportional to 2,644.09, 3,963.27 and 1,720.31 is: 2,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.09 : 3,963.27 = 1,720.31 : x
  2. Step 2: Convert to fraction form
    2,644.09/3,963.27 = 1,720.31/x
  3. Step 3: Cross multiply
    2,644.09x = 3,963.27 × 1,720.31
  4. Step 4: Simplify right side
    2,644.09x = 6,818,033.20
  5. Step 5: Solve for x
    x = 6,818,033.20/2,644.09
  6. Step 6: Final answer
    x = 2,578.60

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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.