Home / 3,387.72-5,083.02-1,631.88

Finding the Fourth Proportional to 3,387.72, 5,083.02 and 1,631.88

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Solution

The fourth proportional to 3,387.72, 5,083.02 and 1,631.88 is: 2,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.72 : 5,083.02 = 1,631.88 : x
  2. Step 2: Convert to fraction form
    3,387.72/5,083.02 = 1,631.88/x
  3. Step 3: Cross multiply
    3,387.72x = 5,083.02 × 1,631.88
  4. Step 4: Simplify right side
    3,387.72x = 8,294,878.68
  5. Step 5: Solve for x
    x = 8,294,878.68/3,387.72
  6. Step 6: Final answer
    x = 2,448.51

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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.