Home / 3,387.09-4,672.74-2,127.75

Finding the Fourth Proportional to 3,387.09, 4,672.74 and 2,127.75

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Solution

The fourth proportional to 3,387.09, 4,672.74 and 2,127.75 is: 2,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.09 : 4,672.74 = 2,127.75 : x
  2. Step 2: Convert to fraction form
    3,387.09/4,672.74 = 2,127.75/x
  3. Step 3: Cross multiply
    3,387.09x = 4,672.74 × 2,127.75
  4. Step 4: Simplify right side
    3,387.09x = 9,942,422.54
  5. Step 5: Solve for x
    x = 9,942,422.54/3,387.09
  6. Step 6: Final answer
    x = 2,935.39

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1.5x scale

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.