Home / 1,958.62-2,700.39-1,428.27

Finding the Fourth Proportional to 1,958.62, 2,700.39 and 1,428.27

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Solution

The fourth proportional to 1,958.62, 2,700.39 and 1,428.27 is: 1,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.62 : 2,700.39 = 1,428.27 : x
  2. Step 2: Convert to fraction form
    1,958.62/2,700.39 = 1,428.27/x
  3. Step 3: Cross multiply
    1,958.62x = 2,700.39 × 1,428.27
  4. Step 4: Simplify right side
    1,958.62x = 3,856,886.03
  5. Step 5: Solve for x
    x = 3,856,886.03/1,958.62
  6. Step 6: Final answer
    x = 1,969.19

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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.