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Finding the Fourth Proportional to 2,672.14, 4,008.21 and 1,028.38

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Solution

The fourth proportional to 2,672.14, 4,008.21 and 1,028.38 is: 1,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.14 : 4,008.21 = 1,028.38 : x
  2. Step 2: Convert to fraction form
    2,672.14/4,008.21 = 1,028.38/x
  3. Step 3: Cross multiply
    2,672.14x = 4,008.21 × 1,028.38
  4. Step 4: Simplify right side
    2,672.14x = 4,121,963.00
  5. Step 5: Solve for x
    x = 4,121,963.00/2,672.14
  6. Step 6: Final answer
    x = 1,542.57

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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.