Home / 2,481.94-3,720.48-1,387.23

Finding the Fourth Proportional to 2,481.94, 3,720.48 and 1,387.23

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Solution

The fourth proportional to 2,481.94, 3,720.48 and 1,387.23 is: 2,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.94 : 3,720.48 = 1,387.23 : x
  2. Step 2: Convert to fraction form
    2,481.94/3,720.48 = 1,387.23/x
  3. Step 3: Cross multiply
    2,481.94x = 3,720.48 × 1,387.23
  4. Step 4: Simplify right side
    2,481.94x = 5,161,161.47
  5. Step 5: Solve for x
    x = 5,161,161.47/2,481.94
  6. Step 6: Final answer
    x = 2,079.49

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1.5x scale

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.